Question

The order for which half-life period is independent of initial concentration is:

• A. Zero
• B. First
• C. Second
• D. Third

Answer 1

Answer: (B)

First

For the first-order reaction, $t_{1/2}$ is independent of initial concentration.

$t_{1/2}=\frac{0.693}{k}$

Hence, option B is correct.