JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Application +4 | -1

The chemical equivalent of copper and zinc are

\mathrm{32 }\,\mathrm{and }\,\mathrm{108}

respectively. When copper and silver voltmeters are connected in series and electric current is passed through for sometime,

1.6\,\,g

of copper is deposited. Then, the mass of silver deposited will be

View answer and explanation

Correct option: C

5.4\,\,g

Option C (

5.4 g

) is correct because it is calculated using Faraday's law, which states that the ratio of mass deposited to chemical equivalent is constant when voltmeters are connected in series.

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