A substance which is insoluble in water and possesses a vapour pressure of 10-15 mm Hg at 373K can be conveniently purified by

  • Option 1)

    Sublimation        

  • Option 2)

    Crystallization

  • Option 3)

    Distillation

  • Option 4)

    Steam distillation

 

Answers (1)

As we discussed in concept

Steam Distillation -

This method is used to separate substances which are steam volatile and are immiscible with water.

- wherein

e.g.   O-nitrophenol and P-nitrophenol

 

 Those substance which is insoluble in water and possesses a vapour pressure of 10-15 mm Hg at 371K can be purified by steam distillation.


Option 1)

Sublimation        

This option is incorrect.

Option 2)

Crystallization

This option is incorrect.

Option 3)

Distillation

This option is incorrect.

Option 4)

Steam distillation

This option is correct.

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