Question

Sublimation cannot be used for purification of
1 urea
2camphor
3 benzoic acid
4napthalene

Answer 1

Sublimation cannot be used for purification of urea.

Answer 2

Sublimation cannot be used for purification of urea.

Explanation:

• Sublimation is the one of the purifying method for the purify the organic materials.

• Sublimation is the direct change of solid to vapour on heating for a chemical compound without going through the liquid state.

• This process mainly used to separate the volatile organic compounds from non volatile impurities.

• Example: Naphthalene, benzoic acid, Anthracene and capmphor.

• This method is not use for urea because it not an volatile organic compound.