According to collision theory, most molecular collisions don’t lead to reaction. Which of the following are necessary for collisions to successfully lead to reaction?
A) The total kinetic energy of the colliding molecules must be greater than some minimum value
B) A catalyst must be present at the collision
C) The colliding particles must be properly oriented in space when they collide.

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A only

A,B and C

A and C

B and C

answer is C.

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Detailed Solution

The conditions (A) and (C) are necessary for the collisions to successfully lead to reaction .
For an effective collision, molecules must possess sufficient energy (called activation orientation) and proper orientation. The presence of catalyst is not essential for collision as reaction can occur even in absence of a catalyst.

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