Statement I- Salt is obtained from seawater by the separation method of evaporation.

Statement II- Salt is non-volatile and water is volatile.

 

Solution:

Concept: Evaporation is a method to separate volatile and non-volatile components of a mixture.

The best method to separate salt from seawater is evaporation. As water is volatile and salt is non-volatile, thus when seawater is boiled, the water evaporates and the salt is left behind as the precipitate.

Thus, both statements are true and statement II is the correct explanation of statement I.