Chemistry
Give —
(a) the principle involved in separation of the mixture
(b) the technique of separation
for naphthalene & sodium chloride mixture.
Answer
(a) Principle involved: Based on the difference in sublimable and non-sublimable nature of solids.
(b) Technique of separation: The mixture of the sublimable solid and non-sublimable solid is heated in an evaporating dish covered with funnel plugged at one end with cotton.
Sublimable solids on heating sublimes and the vapours condense and collect in the pure form on the inner side of the funnel, from where the sublimable solid is scrapped off.
Related Questions
State four differences between - elements, compounds & mixtures with suitable examples.
State the correct technique for separation of the following mixtures.
(a) a sublimable solid & a non-sublimable solid.
(b) a liquid component from soluble impurities in the liquid component.
(c) a lighter liquid from a heavier liquid.
(e) a low boiling point liquid from a high boiling point liquid.
(f) solid constituents in a liquid constituent by adsorption.
Give —
(a) the principle involved in separation of the mixture
(b) the technique of separation
for common salt from a solution of common salt in water.
Give —
(a) the principle involved in separation of the mixture
(b) the technique of separation
for pure water from impure water.