(D) In steam distillation,the organic liquid vaporizes at a temperature lower than its boiling point. This occurs when the sum of the vapor pressure o

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Less than $373 \ K$ and less than $1 \ atm$

(D) In steam distillation,the organic liquid vaporizes at a temperature lower than its boiling point. This occurs when the sum of the vapor pressure of the organic liquid $(P_1)$ and the vapor pressure of water $(P_2)$ becomes equal to the atmospheric pressure $(P = P_1 + P_2)$. Since the total pressure is $1 \ atm$,the individual vapor pressure of the organic liquid is less than $1 \ atm$,meaning it boils at a temperature lower than $373 \ K$.

Class 11 Chemistry 8-3.Organic Chemistry : Purification and characterization Purification of Organic Compounds

Easy

At what temperature and pressure does a liquid vaporize in steam distillation?

A
$373 \ K$ and $1 \ atm$
B
$373 \ K$ and less than $1 \ atm$
C
Less than $373 \ K$ and $1 \ atm$
D
Less than $373 \ K$ and less than $1 \ atm$

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Chapter

8-3.Organic Chemistry : Purification and characterization

Subtopic

Purification of Organic Compounds

What is an eluant?

Easy

View Solution

Match Column-$I$ and Column-$II$ with correct relation:

Column-$I$ Column-$II$

$(i)$ Differential extraction $(p)$ High difference of boiling point

$(ii)$ Steam distillation $(q)$ Separatory funnel

$(iii)$ Distillation at low pressure $(r)$ Component of petroleum

$(iv)$ Simple distillation $(s)$ Liquid decompose at high temperature

$(v)$ Fractional distillation $(t)$ Vacuum pump

Column-$I$	Column-$II$
$(i)$ Differential extraction	$(p)$ High difference of boiling point
$(ii)$ Steam distillation	$(q)$ Separatory funnel
$(iii)$ Distillation at low pressure	$(r)$ Component of petroleum
$(iv)$ Simple distillation	$(s)$ Liquid decompose at high temperature
$(v)$ Fractional distillation	$(t)$ Vacuum pump