Q63 / 180 · AIIMS 2014 · Chemistry

$75 \%$ of a zero order reaction complete in $4 \mathrm{~h}$ $87.5 \%$ of the same reaction completes in

  • Correct answer
    A
    $6 \mathrm{~h}$
  • B
    $12 \mathrm{~h}$
  • C
    $8 \mathrm{~h}$
  • D
    $2 \mathrm{~h}$

Solution

Using the relation, $t_{87.5 \%}=\frac{3}{2} t_{75 \%}$ $t_{87.5 \%}=\frac{3}{2} \times \frac{4}{1}=6 \mathrm{~h}$

Hence, the correct answer is option: 'A'.

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