1.

A current of0.4 ampere is passed for 30 minutes through a voltameter containing CuSO_(4) solution. The weight of Cu dpeosited will be

Answer»

3.18g
0.318g
0.296g
0.150g

Solution :`Q=1xxt=0.5xx30xx60=900C`
`CU^(2+)+2E^(-)rarrCu`
`2xx96500C` DEPOSIT `Cu=63.5g`
`THEREFORE 900C` will deposit Cu
`=(63.5)/(2xx96500)xx900=0.296g`


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