An electrolytic cell contains alumina. If we have to obtain \( 50 \...

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An electrolytic cell contains alumina. If we have to obtain \( 50 \mathrm{~g} \mathrm{Al} \) by using \( 105 \mathrm{~A} \) of current, the time required is
(a) \( 1.54 \mathrm{hr} \)
(b) \( 2.15 \mathrm{hr} \)
- (c) \( 1.42 \mathrm{hr} \)
(d) \( 1.32 \mathrm{hr} \)
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