Chemistry-Order of Reaction
NEET Chemistry Order of Reaction MCQ Question
Type: MCQ-fact-Medium-Class 12
What is the relationship between the slope of the plot of ln[R] versus time for a first order reaction and the rate constant?
A
The slope equals -k
B
The slope equals k
C
The slope equals 2k
D
The slope equals -2k
Correct Answer
Option A
Detailed Explanation
For a first order reaction, when plotting ln[R] against time, the slope is equal to -k, indicating the negative rate constant. This is supported by the equation presented in the NCERT context.
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