Question

If the half life period of a reaction is $0.693k$, its order will be

• A. $zero$
• B. $first$
• C. $second$
• D. $third$

Answer 1

Answer: (B)

$first$

In first order reaction, the rate of reaction depends upon the first power of concentration of reactants. From the integrated rate equation for a first order reaction with rate constant, k, concentration at any time, t is expressed as, hence option B is correct.