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The time required to coat a metal surfac...

The time required to coat a metal surface of `80 cm^2` with `5xx10^(-3)` cm thick layer of silver (density `10.5 g cm^(-3)` with th passage of 3A current through a silver nitrate solution is :

A

115 sec

B

125 sec

C

135 sec

D

145 sec

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The correct Answer is:
B
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