Cyclohexanol is dehydrated to cyclohexane on heating with conc- $\mathrm{H}_2 \mathrm{SO}_4$. If the yield of this reaction is $75 \%$ how much cyclohexene will be obtained from 100 g of cyclohexanol?

• Correct answer
  A

  61.5 g
• B

  75.0 g
• C

  20.0 g
• D

  41.0 g

Solution

The weight of cyclohexene formed $=\frac{82 \times 100}{100} \times \frac{75}{100}=61.5 \mathrm{~g}$

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