STANDARDChemistry-Chemical Kinetics
STANDARD Chemistry First Order Reactions MCQ Question
Type: MCQ-numerical-Medium-Class 12
Half-life period of a first order reaction is 10 min. What percentage of the reaction will be completed in 100 min?
A
25%
B
50%
C
99.9%
D
75%
Correct Answer
Option C
Detailed Explanation
For a first order reaction, the percentage completion can be calculated using the formula: rac{t_{1/2}}{t} = rac{0.693}{\log rac{a}{a-x}}. Substituting the given values, we find that 99.9% of the reaction is completed in 100 min.
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