Question

For which of the following order of reaction, half-life is independent of initial concentration?

• A. $1^{st}$ order
• B. Zero order
• C. $3^{rd}$ order
• D. $2^{nd}$ order

Answer 1

Answer: (A)

$1^{st}$ order

Answer 2

For $1^{st}$ order kinetics, $t_{1 /2}=\frac{0.693}{k}$ i.e. independent of initial concentration