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AIIMS 2014
Exam
AIIMS
Year
2014
Subject
Chemistry
Chapter
Chemical Kinetics

AIIMS 2014 · Chemistry · Chemical Kinetics

75 \% of a zero order reaction complete in 4 ~h 87.5 \% of the same...

75%75 \% of a zero order reaction complete in 4 h4 \mathrm{~h} 87.5%87.5 \% of the same reaction completes in

Options

  1. A6 h6 \mathrm{~h}
  2. B12 h12 \mathrm{~h}
  3. C8 h8 \mathrm{~h}
  4. D2 h2 \mathrm{~h}

Correct answer

A. 6 h6 \mathrm{~h}

Step-by-step solution

Using the relation, t87.5%=32t75%t_{87.5 \%}=\frac{3}{2} t_{75 \%} t87.5%=32×41=6 ht_{87.5 \%}=\frac{3}{2} \times \frac{4}{1}=6 \mathrm{~h}
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