MHT CET 2022 Chemistry question
What will be the weight of Al deposited at cathode, when 0.5 faraday of electricity is passed through aqueous solution of ? (at. mass of Al = 27)
Answer: (A)
Solution
The cathode reaction is , so 3 F (3 mol of electrons) deposit 1 mol = 27 g of Al. For 0.5 F: g. Hence (A).
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