Question

Aq. solution of $CuS{O}_4.5H_{2}O$ changes blue litmus paper to red due to

• A. Presence of ion
• B. Presence of
• C. Hydrolysis taking place
• D. Reduction taking place

Answer 1

The correct option is C Hydrolysis taking place

Hydrolysis of $C{u}^{+2}$ produces $H^{+}$ ions in solution
$C{u}^{+2}+2H_{2}O\to Cu(OH{)}_2+2H^{+}$