CHEMISTRY

Chapter 1
1.Which one of the following group comprise of
elements:
a) Mercury water and ammonia
b) Iodine Tin and iron
c) Coal smoke and fog
2.Which one of the following can be broken into simpler
substance:
a) Ammonia
b) Oxygen
c) Sulphur
3.The gram molecular mass of unknown HNO3 is:
a) 60
b) 100
c) H63
4.Which of these molecules is not a compound.
a) N2o
b) N2
c) NO
5.Which one of the following is equal to two moles of
water(H2O):
a) 1.084x10 molecules
b) 1.204x10 molecules
c) 6.022x10 molecules
6.A compound contains:
a) Different kinds of atoms mixed together
b) The same kinds of atom mixed together
c) Different kinds of atom chemically combined together
7.Which one of the following is an example of triatomic
molecules:
a) CO2
b) O2
c) NO
8.Hydrogen gas is:
a) A monoatomic gas
b) A mixture of hydrogen atom
c) A diatomic gas with each molecule made up of two
atoms
9.Which one of the following compounds has both
empirical and molecular formula identical?
a) Benzene (C6H6)
b) Water(H20)
c) Glucose(C6H12O6)
10.Which one of the following is a homogeneous
mixture?
a) Smoke
b) Air
c) Fog
d) Smog

Chapter 2

1.The maximum number of electron in third energy level

is:
a) 10
b) 18
c) 32
2.Mass of an atom is mostly due to its
a) Nucleus
b) Neutrons
c) Protons
3.If Rutherford had use neutrons instead of alpha
particles in his scattering experiment the neutrons
would:
a) Not deflect because they have no charge
b) Have deflect more often
c) Have been attracted to nucleus easily
4.Electron in its ground state doesnot:
a) Spin
b) Revolve
c) Radiate energy
5.Which statement about X and Y is false
a) They are isotopes
b) They are same elements
c) They have same number of electrons
6.The neutron particle
a) Has a mass equal to that of electron
b) Has a mass approximately equal to that of electron
c) Has a positive charge
7.isotopes of same element have
a) The same number of protons
b) The same number of protons
c) Different number of electrons
8.Which one is the lightest
a) An alpha particle
b) A hydrogen atom
c) An electron
9.The nucleus of an atom has all of the following
characteristics expect that it:
a) Is positively charged
b) Is very dense
c) Contain nearly all of the atoms volumes
10.L-shell has sub-shell(s)
a) S
b) S and p
c) S p and d

Chapter 3

1.Which of the following element is in the same family as

fluorine:
a) Silicone
b) Antimony
c) Iodine
2.Which of the following would have the same ionization
energy:
a) K
b) P
c) S
3.An element has configuration 2,8,1.It belongs to,
________;
a) Group I and II period
b) Group III and I period
c) Group I and VII period
4.Which of the following elements would be same to
carbon:
a) Nitrogen
b) Silicon
c) Oxygen
5.S-block elements are:
a) Metals
b) Non metals
c) Transition
6.Which of the following would have largest ionization:
a) NA
b) AI
c) H
7. Elements in a _____ have similar chemical properties.
a) Period
b) Group
c) Both a and b
8.An element has 8 electrons in its valence shell. It is a
member of.
a) Alkali family
b) Halogen family
c) Carbon family
9. the modern periodic table is based on
a) Atomic number
b) Neutron number
c) Mass number
10. shielding effect is due to
a) Neutron
b) Proton
c) Electron
 Chapter 4

1.An atom with a charge is called:

a) An electron
b) A molecule
c) A metal
2.An element X is in group VI of the periodic table. The
ion will be represent by
a) X+
b) X-
c) X-2
3.Which pair of element will join to form a compound
with one to one ratio:
a) Magnesium and chlorine
b) Sodium and oxygen
c) Potassium and flourine
4.Which two element will form a covalent compound.
a) Sodium and oxygen
b) Copper and oxygen
c) Carbon and oxygen
5.When calcium atom become a calcium ion
a) It loses an electron
b) It loses two electron
c) It gains electron
6.In formation of an ionic bond the atoms taking part:
a) Only gain electron
b) Share electrons
c) Lose and gain of electrons
7.Flourine has an electronic configuration 2,7 and
oxygen 2,6 the formula of fluorine oxide will be
a) FO
b) FO2
c) F2O
8.Which of the statement about covalent bond is
incorrect:
a) HCI contains one pair of shared electrons
b) CCL4 contains four pairs of shared electrons
c) H2O contains three pair of shared electrons
9.Which of the following ion do not have the electronic
configuration of an argon atom
a) CA+2
b) S-2
c) K -1
10.Which one of the below contain only ionic compound
a) Calcium Oxide, Hydrogen Chloride, Magnesium oxide
b) Calcium Oxide, Magnesium oxide, Sodium chloride
c) Carbon Dioxide, Copper Sulphate, Hydrogen chloride

Chapter 5

1.The spontaneous mixing of particles is called:

a) Evaporation
b) Sublimation
c) Diffusion
2.Which statement for the particles of solid is not correct
a) They move at great speed
b) They are arranged in great pattern
c) There is a very little space between the particle
3.A liquid boils when its vapour pressure becomes equal
to
a) 760 cm of HG
b) Pascal
c) 101.325 kilo pascal
4.The vapour pressure of liquid increase with the
a) Increase of pressure
b) Increase of temperature
c) Increases of intermolecular forces
5.Water boils at 100C but it is possible to boil at 50C
which variable would you have to change to do this
a) Increase external pressure
b) Decrease external pressure
c) Increase surface area
6.The vapor pressure of liquid in a closed container
depends on
a) Amount of liquid
b) Surface area of liquid
c) Temperature
7.Which one of the following is not an example of
amorphous solid:
a) Rubber
b) Glass
c) Glucose
8.At freezing point which one of these coexist in dynamic
equilibrium:
a) Gas and solid
b) Liquid and gas
c) Liquid and solid
9.Ink spread in water because of
a) Vapour pressure
b) Expansion
c) Diffusion
10.What will be the pressure of the gas if the volume of
the gas at 2 atmosphere is increased from 1.5 dm cube
to 3 dm cube:
a) 1 atmosphere
b) 1.5 atmosphere
c) 2 atmosphere

Chapter 6

1.Which of the following solution is dilute:

a) 1.0 M
b) 0.5 M
c) 0.05 M
2.Milk is an example of
a) Solution
b) Saturated solution
c) Colloids solution
3.When there is a low concentrated of solute in a
solution ,it is known as:
a) Dilute solution
b) Saturated solution
c) Concentrated solution
4.Water droplet in air is an example of solution:
a) Gas in gas
b) Gas in liquid
c) Liquid in gas
5.What is the molarity of NANO3 solution made by
diluting 250.0 cm cube of 1.60M solution to a final
volume of 400 cm cube:
a) 1.20 M
b) 1.00 M
c) 0.200 M
6. what is the concentration in %mass by volume (M/V) of
a solution containing 15.0 g kcL in 600.0 cm cube
solution:
a) 5.00%
b) 2.00%
c) 0.200%
7.When KCI dissolve in water the following will be
produced by:
a) K and Cl
b) K and Cl -
c) K and Cl2
8. 2 moles of Na2SO4 are dissolved in one dm3 of
solution molarity of solution is:
a) 1 M
b) 2 M
c) 3 M
9.Molarity is the number of solute dissolved in:
a) 1kg of solvent
b) 1kg of solution
c) 1dm3 of solvent
10.The molarity of NOAH solution by dissolving 4g of it in
250 ml water is:
a) 0.4 M
b) 0.2 M
c) 0.8 M

Chapter 7

1.The oxidation number of N2 is:

a) +1
b) +3
c) 0
2.The oxidation number of C in CH3OH:
a) -2
b) -1
c) 0
3.A cation is:
a) Neutral
b) Negatively charged
c) Positively charged
4.Electrons are lost by the:
a) Reducing agent as it undergoes oxidation
b) Reducing agent as it undergoes reduction
c) oxidizing agent as it undergoes oxidation
5.What is oxidation number assigned to manganese in
KMno4:
a) +7
b) +3
c) +2
6.In a particular redox reaction, the oxidation number of
phosphorus charged from -3 to 0. From this information,
it may be concluded that phosphorus.
a) Lost 3 electrons and was reduced
b) Lost 3 electrons and was oxidized
c) Gained 3 electron and was reduced.
7.Which statement is true for an electrochemical cell:
a) Oxidation occurs at the anode only
b) Reduction occurs at the anode only
c) Oxidation occurs at both the anode and cathode
8.In which of the following does Sulphur have an
oxidation number of +7:
a) HSO3
b) SO3
c) H2SO4
9.What happens to the reducing agent in an oxidation
reduction reaction:
a) It is oxidized as it gains electrons
b) It is oxidized as it loses electrons
c) It is reduced as it gains electrons
10.In an electrochemical cell electrons travels in which
direction:
a) From the anode to the cathode through the external
circuit
b) From the anode to the cathode through the salt bridge
c) From the cathode to the anode through the external
circuit
d) From the cathode to the cathode through the salt
bridge
Chapter 8

1.Bromine is a non-metal in:

a) Solid state
b) Liquid state
c) Gaseous state
2.Halogens reacts with metal to form:
a) Halides
b) Oxides
c) Halogen sulphides
3.Alkali metals are:
a) Oxidizing agents
b) Dehydrating agents
c) Reducing agents
4.Among the alkali metals the metals with the highest
ionization potential is:
a) NA
b) RB
c) Li
5.The halogen present in the solid form is:
a) Chlorine
b) Fluorine
c) Iodine
6. Tendency of a metal to lose electron is called:
a) Electronegativity
b) Electropositivity
c) Electroplating
7.The word alkali means:
a) Base
b) Basic salt
c) Acid
8.The oxide of calcium Cao is:
a) Acidic
b) Basic
c) Amphoteric
9.Which one of the following is not an alkali metal:
a) Francium
b) Cesium
c) Rubidium
10.Group II elements are named as Alkaline earth metal
because:
a) Their oxides are basic
b) Their oxide and hydroxides are water soluble
c) Both a and b