Which of the following statements is incorrect

Question:

Which of the following statements is incorrect about the collision theory of

chemical reaction?

(i) It considers reacting molecules or atoms to be hard spheres and ignores

their structural features.

(ii) A number of effective collisions determine the rate of reaction.

(iii) The collision of atoms or molecules possessing sufficient threshold energy

results into the product formation.

(iv) Molecules should collide with sufficient threshold energy and proper

orientation for the collision to be effective.

Solution:

Option (iii) The collision of atoms or molecules possessing sufficient threshold energy

results into the product formation is the answer.

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