Exams › JEE Main › Chemistry
In the following matching-type question, pair each item in Column I with the correct statement in Column II. Column I (A) k = ([R0] - [R]) / t (B) k = 2.303 / t × log([R0]/[R]) (C) Expression for k of a first-order reaction when t = t1/2 and [R] = [R0]/2 (D) Expression for k of a zero-order reaction when t = t1/2 and [R] = [R0]/2 Column II (p) k = 2.303 / t1/2 × log 2 (q) Rate constant for a zero-order reaction; k = [R0] / 2t1/2 (r) Rate constant for a first-order reaction Choose the correct matching.
- A-(q), B-(s), C-(p), D-(r)
- A-(q), B-(s), C-(p), D-(r)
- A-(q), B-(p), C-(s), D-(r)
- A-(q), B-(s), C-(r), D-(p)
Correct answer: A-(q), B-(s), C-(p), D-(r)
Solution
The correct option matches the expressions for the rate constants of zero-order and first-order reactions accurately with their respective definitions. Specifically, (A) corresponds to the zero-order reaction rate constant, (B) relates to the first-order reaction, (C) provides the expression for the first-order reaction at half-life, and (D) describes the zero-order reaction at half-life, confirming the relationships between the equations and their meanings.
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