Assertion : `CuSO_(4).5H_(2)O` on heating to `250^(@)C` losses all the five `H_(2) O` molecules and becomes anhydrous.
Reason : All five `H_(2) O` molecules are coordinated to the central `Cu^(2+)` ion.

Options

A. Statement-1 is true , Statement-2 is true and Statement-2 is correct explanation for Statement-1
B. Statement-1 is true, Statement-2 is True and Statement-2 is Not correct explanation for statement-1
C. Statement-1 is true, Statement-2 is False
D. Statement-1 is False, Statement-2 is True

Answer

C

Explanation

Statement-1:` CuSO_(4).5H_(2)O(blue) undersetto(250^(@)C)` CuSO_(4)(white)+5H_(2)O uparrow. Anhydrous copper sulphate becomes white because there is no. d-d transition of electron in absence of liganda according to crystal field theory.
Statement-2: Four water molecules are coordinates to `Cu^(2+)` and fifth one is hydrogen bonded to two water molecules and anion, `SO_(4)^(2-)`.