Multiple choice

Which of the following values of rate constants indicates first order reaction? i. 3.2 x 10-3 sec-1 ii. 4.25 x 10-2 mol L-1 s-1 iii. 8.1 x 10-6 mol L-1 s-1 iv. 4.06 x 10-5 s-1 v. 3.9 x 10-6 L mol-1 s-1 Select the correct answer using codes given below:

  1. i and ii

  2. i and iv

  3. ii and iii

  4. ii and iv

  5. iii and v
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For first order reaction, the rate constant has units of s−1. 3.2 x 10-3 s-1: First order reaction. 4.06 x 10-5 s-1: First order reaction.

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