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1) Chemical kinetics is the branch of chemistry which deals with the study
of:
a) Speed or rate of chemical reaction.
b) The factors affecting the rates of the reaction.
c) The mechanism by which the reactions proceed.
d) All of these.
ANSWER : All of these.
2) The unit of the rate of reaction is:
a) mol L-1 min -1
b) mol -1 L min-1
c) Both a and b
d) none of these.
ANSWER : mol L-1 min -1
3) The rate of reaction depends upon the molar concentration of reactants
which:
a) Keep on increasing with passage of time.
b) Keep on decreasing with passage of time.
c) Remains same with passage of time.
d) Does not depend upon the time.
ANSWER : Keep on decreasing with passage of time.
4) The factors on which the rate of reaction depends is:
a) Temperature.
b) Presence of catalyst.
c) Presence of light.
d) All of these.
ANSWER : All of these.
5) Which among the following is not an example of first order reaction?
a) Decomposition of ammonium nitrite.
b) Decomposition of hydrogen peroxide.
c) Decomposition of ammonia.
d) Decomposition of SO2Cl2.
ANSWER : Decomposition of ammonia.
6) The three-fourth of a first order reaction is completed in 32 minutes.
Find the half-life period of the reaction?
a) 70 min.
b) 30 min
c) 96 min
d) 16 min.
ANSWER : 16 min.
7) Find the order of the reaction, if the rate of a gaseous reaction is
halved when the volume of the vessel is doubled.
a) 1
b) 2
c) 0
d) 3
ANSWER : 1
8) What is the order of reaction, if the rate constant of a reaction is 1.2
x 10-2 mol-2
a) 2
b) 0
c) 1
d) 3
ANSWER : 3
9) A first order reaction is 40% complete in 50 minutes. In what time will
the reaction be 80% complete?
a) 154.48 min.
b) 155.06 min.
c) 157.58 min.
d) 158.15 min.
ANSWER : 157.58 min.
10) What percentage of the reactant will be left behind after 120 minutes,
if the half-life period of a first order reaction is 60 minutes?
a) 25%
b) 20%
c) 30%
d) 40%
ANSWER : 25%
Part 1
Part 2 Part 3 Part 4
Part 5
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