Molten AlCl3 is electrolysed with a current of 0.5 ampere to produce 27 g Al. Find the required time of the current flow.
A
57900
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B
34800
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C
579000
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D
44500
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Solution
The correct option is D 579000 Al3++3e−→Al From Faraday's law of electrolysis, we know that w=EQ96500. E=27/3=9. Q=i.t=3×96500. ⟹t=3×965000.5. t=579000s