Chemical Kinetics - Online Test
Q1. The substance that slows down the reaction without being consumed is known as
Answer : Option B
Explaination / Solution:
Inhibitors inhibits the action of catalyst and hence slows down the rate of reaction.
Q2. Which among the following statement is not true for catalyst?
Answer : Option C
Explaination / Solution:
Catalyst does not change the equilibrium constant it only helps in reaching the equilibrium at a faster rate,i.e. it catalyses the forward as well as teh backward reactions to the same extent so that the equilibrium state remains same but is reached earlier.
Q3.
The relationship between temperature and rate constant is given by the relation:
Answer : Option C
Explaination / Solution:
A is Arrhenius factor.
Q4. Collision theory is applicable to
Answer : Option C
Explaination / Solution:
Collision theory is only applicable to bimolecular reaction.
Q5. The role of catalyst in a chemical reaction is to change the
Answer : Option D
Explaination / Solution:
Role of catalyst is to decrease the activation energy of reaction.
Q6. Rate of ionic reactions are generally
Answer : Option D
Explaination / Solution:
Ionic reactions occur very fast.
Q7. The metabolism of hormones in human body is an example of
Answer : Option C
Explaination / Solution:
It is pseudo first order reaction.
Q8. If a reaction proceeds with a uniform rate throughout, the reaction is
Answer : Option B
Explaination / Solution:
Rate of reaction is independent of concentration of reactant.
Q9. Rate of reaction does not remain constant throughout because
Answer : Option C
Explaination / Solution:
Rate of reaction is dependent on concentration of reactant
Q10.
The reactionobeys the rate equationwhat would be the order of this reaction?
Answer : Option B
Explaination / Solution:
Order of reaction with respect to a is x and wrt to b is y so total order of reaction is x+y.
