19.
If electrolysis of aqueous solution of CuSO4 is carried out using graphite electrode, then what is the pH
of solution of electrolytic cell ?
(A) pH = 14.0
(B) pH = 9.0
(C) pH = 7.0
(D) pH < 7.0
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Answer:If pH of water is 7.0 at 25°C and if it is heated to 70°C then pH will decrease but solution will be neutral.
Hence correct option is d)pH will decrease but solution will be neutral.
Explanation:
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