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The negative Zn pole of Daniell cell, se...

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

A

0.242 g

B

0.180 g

C

0.141 g

D

0.126 g

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