Question

The time required for $100\%$ completion of zero order reaction is:

• A. $\frac{a}{k}$
• B. $\frac{a}{2k}$
• C. $\frac{2a}{k}$
• D. $\frac{k}{a}$

Answer 1

The correct option is A $\frac{a}{k}$

For a zero order reaction,

$x=kt$

For 100% completion of the reaction, x = a

Therefore, $a=kt$

or $t=\frac{a}{k}$

Hence, the correct option is $\text{A}$