Question

Which of the following statements are true about the collision theory of chemical reaction?
I. Number of effective collisions determine the rate of reaction.
II. Collision of atoms/molecules possessing sufficient threshold energy results into the formation of products.
III. It helps in considering reacting atoms/molecules to be hard spheres and ignore their structural features.
IV. Molecules should collide with sufficient threshold energy and proper orientation for the collision to be effective.
Choose the most appropriate option regarding the above statements.

• A. $I, II$ and $III$
• B. $I, III$ and $IV$
• C. $II, III$ and $IV$
• D. $I, II, III$ and $IV$

Answer 1

Answer: (B)

According to collision theory of chemical reaction:
I. Number of effective collisions determines the rate of reaction.
II. Collision of atoms/molecules possessing sufficient threshold energy does not result into the formation of product. Only molecule having effective collision lead to the formation of product.
III. It helps in considering reacting atoms/molecules to be hard spheres and ignores their structural features.
IV. Molecules should collide with sufficient threshold energy and proper orientation for the collision to be effective.