Question

Which of the following statements is incorrect about the collison theory of chemical reaction?

A. It considers reacting molecules or atoms to be hard spheres and ignores their structural features.
B. Number of effective collisions determines the rate of reaction.
C. Collision of atoms or molecules possessing sufficient threshold energy results into the product formation.  
D. Molecules should collide with sufficient threshold energy and proper orientation for the collision to be effective.
Answer :   Collision of atoms or molecules possessing sufficient threshold energy results into the product formation.
Solution :
Not only sufficient threshold energy of colliding atoms or molecules but also the proper orientation for the collision is required for the formation of products.

Releted MCQ Question on
Physical Chemistry >> Chemical Kinetics

Releted Question 1

If uranium (mass number 238 and atomic number 92) emits an $$\alpha $$ -particle, the product has mass no. and atomic no.

A. 236 and 92
B. 234 and 90
C. 238 and 90
D. 236 and 90
Releted Question 2

The rate constant of a reaction depends on

A. temperature
B. initial concentration of the reactants
C. time of reaction
D. extent of reaction
Releted Question 3

The specific rate constant of a first order reaction depends on the

A. concentration of the reactant
B. concentration of the product
C. time
D. temperature
Releted Question 4

A catalyst is a substance which

A. increases the equilibrium concentration of the product
B. changes the equilibrium constant of the reaction
C. shortens the time to reach equilibrium
D. supplies energy to the reaction

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Chemical Kinetics


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