During electrolytic refining of copper.
(a) Pure copper acts as anode.
(b) Pure copper acts as cathode.
(c) Impure copper acts as anode.
(d) Impure copper acts as cathode.

(a), (b)

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(b), (c)

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(a), (d)

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(b), (d)

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Solution

The correct option is D (b), (c)
The option (B) i.e, (b), (c) is the correct answer.
(b) Pure copper acts as cathode.
(c) Impure copper acts as anode.
During electrolysis, weight of impure Cu decreases and that of pure Cu increases.

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During electrolytic refining of copper.(a) Pure copper acts as anode.(b) Pure copper acts as cathode.(c) Impure copper acts as anode.(d) Impure copper acts as cathode.

The correct option is D (b), (c)The option (B) i.e, (b), (c) is the correct answer.(b) Pure copper acts as cathode.(c) Impure copper acts as anode.During electrolysis, weight of impure Cu decreases and that of pure Cu increases.

During electrolytic refining of copper.
(a) Pure copper acts as anode.
(b) Pure copper acts as cathode.
(c) Impure copper acts as anode.
(d) Impure copper acts as cathode.

The correct option is D (b), (c)
The option (B) i.e, (b), (c) is the correct answer.
(b) Pure copper acts as cathode.
(c) Impure copper acts as anode.
During electrolysis, weight of impure Cu decreases and that of pure Cu increases.