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Steam distillation is based on...

Steam distillation is based on

A

Boyle's law

B

Charle's law

C

Dalton's law of partial pressures.

D

Avogadro's law

Text Solution

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The correct Answer is:
C
In steam distillation, organic compound and water vapourise together. The mixture boils at a lower temperature `(lt 100^(2)C)` when the total vapour pressure becomes equal to atomospheric pressure Here total pressure,
`p = p("water") + p` (organic compound)
(Dalton's law of partial pressures)
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Assertion (A) Aniline is purified by steam distillation. Steam distillation is used for purification of substances which are insoluble in water but volatile in steam.

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Steam distillation is used to purify a compound which is steam principle volatile and insoluble in water. The impurities should not be steam volatile. It is based on the principle that liquid will boil when partial vapour presure of liquid and partial vapour pressure of steam both become equal to atmospheric presure P=p_(1)+p_(2) . It reduces the boiling point of liquid. ("Wt. of water distilled")/("Wt. of substance distilled")= ("M. Wt. of water" xx V.P. " of steam")/(M. Wt. "of substance" xx "V.P. substance") Which of the following cannot be separated by steam distillation?

Steam distillation is used to purify a compound which is steam principle volatile and insoluble in water. The impurities should not be steam volatile. It is based on the principle that liquid will boil when partial vapour presure of liquid and partial vapour pressure of steam both become equal to atmospheric presure P=p_(1)+p_(2) . It reduces the boiling point of liquid. ("Wt. of water distilled")/("Wt. of substance distilled")= ("M. Wt. of water" xx V.P. " of steam")/(M. Wt. "of substance" xx "V.P. substance") Whilch of the following is steam volatile?

Steam distillation is used to purify a compound which is steam principle volatile and insoluble in water. The impurities should not be steam volatile. It is based on the principle that liquid will boil when partial vapour presure of liquid and partial vapour pressure of steam both become equal to atmospheric presure P=p_(1)+p_(2) . It reduces the boiling point of liquid. ("Wt. of water distilled")/("Wt. of substance distilled")= ("M. Wt. of water" xx V.P. " of steam")/(M. Wt. "of substance" xx "V.P. substance") Calculate weight of aniline distilled if weight of water distilled is 100g when P_("organic compound")=100mm Hg and P_(H_(2)O)=200mmHg .

Fractional distillation is based on the property that

Steam distillation is applied to those organic compounds which are steam volatile and:

Steam distillation is applied for the separation of those compounds which are

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