Question

A mixture contain naphthalene and sodium carbonate suggest a method for their separation

Answer 1

A mixture which contain naphthalene and sodium carbonate can be separated by process of sublimation

Answer 2

A mixture of napthelene and sodiam bicarbonate can be separated by first through mixing them with water and then with through the process of filtration after filtration the the napthelene is lift behind in the foyer paper and the we can crystallise the sodiam  bicarbonate where crystals of sodiam are obtained . Hence they are separated.