Question

When we connect a copper plate and an zinc plate to the positive and negative terminals of a battery respectively along with a switch. and immerse the plates into a beaker containing copper sulphate solution and leave it undisturbed for a while. we observe, even before the switch is turned on, copper deposited on the zinc plate. This could have been due to .

1 electrolysis

3 a decomposition reaction

4 a displacement reaction

4 elecroplating
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Answer 1

Explanation:

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