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C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mass

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

The properties of an elements correspond to the properties of that isotope which is the most :

A. Abundant

B. Unsuitable

C. Least table

D. Stable enough

C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mas

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

More abundant isotope of an elements is the one with :

A. Even atomic number

B. Odd atomic number

C. Even mass number

D. Odd atomic number

C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mas

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

Large number of isotope are known for the elements with masses which are multiple of :

A. Eight

B. Six

C. Four

D. Two

C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mas

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

Fractional atomic mass is due to number of possible isotopes and their natural :

A. Deterioration

B. Natural abundant

C. Stability

D. Occurrence

C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mas

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

The formula mass express in gram is called ?

A.Gram formula

B. Empirical formula

C. Simple formula

D. Molecular formula

C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mas

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

Empirical formula for glucose is :

A. CH2O

B. CH

C. CO

D. H2O

C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mas

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

Empirical formula for benzene is :

A. CH

B. CH2

C. CO

D. H20

C6  H12 O6  and  C12 H22 O11  are :

A. Monoatomic molecules

B. Polyatomic molecules

C.Triatomic molecules

D. Diatomic molecules

_____________________________________________________

Cl2 ,  N2 ,  O2  are :

A. Diatomic molecules

B. Heteroatomic molecules

C. Polyatomic molecules

D. Monoatomic molecules

__________________________________________________________

NH3 , HCL , H2O are :

A. Heteroatomic molecules

B. Polyatomic molecules

C. Diatomic molecules

D.Monoatomic molecules

_________________________________________________________

Which statement about an atom is true ?

A. The number of proton is always equal to the number of electron

B. Mass number is less  than atomic number

C. All the elements have only one mass number

D. Mass number is always to equal to the atomic number

_____________________________________________________________

A species having positive & negative charge is called ?

A. Nuclide

B.Proton

C. Iron

D. Atom

_____________________________________________________________

An ion bearing positive charge is called :

A. Positron

B. Cation

C. Radical

D.Anion

_____________________________________________________________

Formation of a cation is a process based upon energy contents :

A. Endothermic process

B. Exothermic process

C. Both A & B

D. None of these

_____________________________________________________________

What is true about  an anion ?

A. Its size is equal to parent atom

B. Its size is smaller than parent atom

C. Its size is larger than parent atom

D. Its size variable to parent atom

_____________________________________________________________

Any molecules species having positive charge is called ?

A. Macro molecules

B. Molecular ion

C. Polymers

D. Giant radicals

_____________________________________________________________

Molecules ions are formed in an instrument called ?

A. Mass spectrometer

B. Potentiometer

C. Thermocycle

D. Galvanometer

_____________________________________________________________

The mas of a molecular ion can be calculated from irs :

A. z/m ration

B. m/e ration

C. e/m rations

D. m/t ration

_____________________________________________________________

The mass of  one atom of an elements compared with the mass of an atom of carbon taken as 12 is called ?

A. Relative atomic mass

B. Molecular mass

C. Atomic mass

D. Relative molecular mass

_____________________________________________________________

Isotopes of an elements are recorded separately in :

A. Mass spectrometer

B. Calorimeter

C. Spectrophotometer

D. I.R Spectrophotometer

_____________________________________________________________

Isotopes can be separated  by :

A. Chemical method

B. Geological method

C. Physical method

D. Ordinary method

_____________________________________________________________

The branches of science dealing  with matter is called ?

A. Chemistry

B. Physics

C. Mathematic

D. Mechanics

_____________________________________________________________

Smallest particles of an elements which may or may not have independent existence is known as :

A. An atom

B. A molecules

C. An anion

D. An electron

_____________________________________________________________

When an electron is added to an unipositive ion, we get :

A. Neutral atom

B. Cation

C. Anion

D. Molecules

_____________________________________________________________

+CO is an example of :

A. Stable molecules

B. Cationic molecular ion

C. Anionic molecules ion

D. Free radical

_____________________________________________________________

The diameter of  atom is of  the order 

A. 2 * 10-5 m

B. 2 * 10-10 m

C. 2 * 10-2  m

D. 2 * 10-3 m

_____________________________________________________________

Covalent compound mostly exit in the form of :

A. Radicals

B. Atoms

C. Molecules

D. Entities

_____________________________________________________________

Metals tend to lose electrons to become

A. Positively charged ions

B. Negative charged ions

C, All of above

D. Negative radicals

_____________________________________________________________

Non-metals generally tend to gain electrons to become

A. Positive charged ions

B. Radical

C. Negative charged ions

D. Both B & C

_____________________________________________________________

Determinations of atomic masses and invention of system of writing symbols was  given by :

A. J.Berzeling

B. Democritus

C. Dalton

D. None of these

_____________________________________________________________

Atoms can be evident by the use of electrons microscope, field ionization microscope and :

A. X-rays technique

B. Light microscope

C. Telescope

D. Compound microscope

_____________________________________________________________

Formula of heavy water is :

A. H2 O

B. H2O2

C. H3O

D. D2O
_____________________________________________________________

Isotopes have different :

A. Physical properties

B. Chemical properties

C. Biochemical properties

D. Thermodynamic properties

_____________________________________________________________

Isotopes have same position in periodic table because :

A. They have different mass

B. They have same atomic number

C. They have same atomic mas

D. All true

_____________________________________________________________

Mass spectrometer separates differents position isotopic on the basic of  their :

A. Mass value

B. Charge value

C. m/e ration

D. e/m value

_____________________________________________________________

In the combustion analysis of glucose, % of  oxygen is calculated by subtracting the percentage of which elements from 100 ?

A. Carbon

B. Carbon & hydrogen

C. Carbon & Nitrogen

D. Nitrogen