For electroplating copper on an iron object, which terminal of the battery is connected to the iron object?
(a) Positive
(b) Negative
(c) Both
(d) None of them

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Solution

(a) Negative terminal
Cathode is the negatively charged electrode where reduction occurs.
Copper²⁺ ions are reduced to form Cu deposit on iron which must be present at the cathode.

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For electroplating copper on an iron object, which terminal of the battery is connected to the iron object? (a) Positive (b) Negative (c) Both (d) None of them

(a) Negative terminal Cathode is the negatively charged electrode where reduction occurs. ​Copper2+ ions are reduced to form Cu deposit on iron which must be present at the cathode.

For electroplating copper on an iron object, which terminal of the battery is connected to the iron object?
(a) Positive
(b) Negative
(c) Both
(d) None of them

(a) Negative terminal
Cathode is the negatively charged electrode where reduction occurs.
Copper²⁺ ions are reduced to form Cu deposit on iron which must be present at the cathode.