Chemistry Chemical Kinetics Collision Theory, Energy of Activation and Arrhenius Equation Single Correct MCQ
Published on: August 13, 2026

According to the collision theory of chemical reactions

A
A chemical reaction occurs with every molecular collision
B
Rate is directly proportional to the number of collisions per second
C
Reactions in the gas phase are always of zero order
D
Reaction rates are of the order of molecular speeds

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The correct answer is:
B

The increase in collision frequency brings in an increase in effective collisions and thus rate of reaction increases.

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