Question

Question #4936e

Answer 1

`CuSO_4 .5H_2O` is an hydrated salt because it contains 5 molecules of water as water of crystallization.

Explanation:

An example to dibaic salt is `Na_2HPO_4`.
When two `H^+` ions of an acid are replaced by basic radicals(Na,K etc.), dibasic salts are formed.