STANDARDChemistry-Chemical Kinetics
STANDARD Chemistry First Order Reactions MCQ Question
Type: MCQ-numerical-Medium-Class 12
The rate constant for a first order reaction is 2 × 10⁻² min⁻¹. The half-life period of reaction is:
A
69.3 min.
B
34.65 min.
C
17.37 min.
D
3.46 min.
Correct Answer
Option B
Detailed Explanation
The half-life period for a first order reaction is given by t_{1/2} = rac{0.693}{k}. Substituting the given rate constant, the half-life is calculated to be 34.65 min.
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