Name the method used for the separation of a mixture of iodine and sodium chloride.

Physical properties of ice,water and steam are very different. What is the chemical composition of water in all the three states?

Which of the following processes occurs in the reaction given below $C_{(graphite)} \longrightarrow C_{(g)}$?

Describe the method,which can be used to separate two compounds with different solubilities in a solvent $S$.

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ $A$ mixture contains benzoic acid and naphthalene. The pure benzoic acid can be separated out by the use of benzene.
Reason $R:$ Benzoic acid is soluble in hot water.
In the light of the above statements,choose the most appropriate answer from the options given below.

In the fractional distillation of crude petroleum,which of the following statements is correct?