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Current Electricity

JEE Main level, single correct, medium

201 of 380

Question 201 of 380

The negative $\mathrm{Zn}$ pole of a Daniell cell, sending a constant current through a circuit, decreases in mass by $0.13 \mathrm{~g}$ in 30 minutes. If the electrochemical equivalent of $\mathrm{Zn}$ and $\mathrm{Cu}$ are $32.5$ and $31.5$ respectively, the increase in the mass of the positive Cu pole in this time is

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Answer: (C) $0.126 \mathrm{~g}$

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JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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JEE Main Physics practice question on Current Electricity (Electric Cell or Battery), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.