Question

given that naphthalene is insoluble in water and sublimes easily upon heating, describe two methods by which you could separate naphthalene and Nacl

Answer 1

table salt is soluble in water and naphthaline is not. naphthaline sublimes easily and NaCl does not.
dissolve first the NaCl by mixing it with water, and since naphthaline is insoluble but sublimes easily then you can use heat to evaporate then filter it into a container then use vacuum filtration