A sample of water under supply was found to boil at `102^(@)C` at normal temperature and pressure. It the water pure ? Will this water freeze at `0^(@)C` ? Comment.

Explanation

The standard boiling point temperature of water is `100^(@)C`. Therefore, the sample with boiling point `100^(@)C` represents the pure form of water. The sample with boiling point `102^(@)C` is impure. Please note that impurities always raise the boiling point temperatures of liquids and lower their freezing point temperature. Therefore, the sample 'B' will freeze before `0^(@)C`.