STANDARDChemistry-Chemical Kinetics

STANDARD Chemistry Order of Reaction MCQ Question

Type: MCQ-numerical-Medium-Class 12

For reaction aA → xP, when [A] = 2.2 mM, the rate was found to be 2.4 mM s⁻¹. On reducing concentration of A to half, the rate changes to 0.6 mM s⁻¹. The order of reaction with respect to A is:

A

1.5

B

2.0

C

2.5

D

3.0

Correct Answer

Option B

Detailed Explanation

The rate changes by a factor of 4 when the concentration is halved, indicating a second-order reaction with respect to A.

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