Chemistry-Rate of Reaction

NEET Chemistry Rate of Reaction Assertion Reason Question

Type: Assertion Reason-assertion-Medium-Class 12

Assertion (A): The rate of a first-order reaction is dependent on the concentration of the reactant. | Reason (R): The plot of ln[R] vs time for a first-order reaction is a straight line with a negative slope.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

Correct Answer

Option A

Detailed Explanation

In a first-order reaction, the rate is proportional to the concentration of the reactant, and the plot of ln[R] vs time is a straight line with a negative slope, indicating a direct relationship.

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