Chemistry-Rate of Reaction
NEET Chemistry Rate of Reaction MCQ Question
Type: MCQ-conceptual-Easy-Class 12
Which of the following statements about reaction rates and their characteristics is correct?
A
The average rate of a reaction can predict the instantaneous rate at any given moment.
B
The half-life of a first order reaction is constant and independent of the initial concentration.
C
Rate laws can be predicted solely from the balanced chemical equation.
D
Concentration, temperature, and pressure do not affect the rate of a reaction.
Correct Answer
Option B
Detailed Explanation
The half-life of a first order reaction is indeed constant and does not depend on the initial concentration of the reacting species. This is highlighted in the NCERT context where the half-life is specifically mentioned as being independent of the initial concentration.
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