Question

Assertion (A) In steam distillation, the liquid boils when the sum of vapour pressures due to the organic liquid $\left(p_{1}\right)$ and that due to water $\left(p_{2}\right)$ becomes equal to the atmospheric pressure $(p)$, i.e. $p=p_{1}+p_{2}$.
Reason (R) $p_{1}$ is lower than $p$, the organic liquid vapourises at lower temperature than its boiling point.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$.
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$.
• C. $A$ is correct; $R$ is incorrect.
• D. $R$ is correct; $A$ is incorrect.

Answer 1

Answer: (B)

Correct answer is (b) Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$.