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If nearly 105 coulombs liberate 1 gm-equivalent of aluminium, then the amount of aluminium (equivalent weight 9), deposited through electrolysis in 20 minutes by a current of 50 amp. will be
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- 0.6 gm
- 0.09 gm
- 5.4 gm
- 10.8 gm
Correct Option: C
m = Zit, 9 = Z × 105, Z= 9 × 10-5
Again,
m = Zit = 9 × 10-5 × 50 × 20 × 60 = 5.4 gm
