Equilibrium Question 26
Question: Aqueous solution of $ CuSO_4.5H_2O $ changes blue litmus paper to red due to [CPMT 1979; MP PMT 1989]
Options:
A) Presence of $ C{u^{++}} $ ions
B) Presence of $ SO_4^{–} $ ions
C) Hydrolysis taking place
D) Reduction taking place
Show Answer
Answer:
Correct Answer: C
Solution:
Hydrolysis of $ C{u^{2+}} $ produces $ {H^{+}} $ ions in solution. $ C{u^{2+}}+2H_2O\to Cu{{(OH)}_2}+2{H^{+}} $
