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MHT CET Chemistry question

ChemistryElectrochemistryMHT CET

Two different electrolytic cells filled with molten and molten , respectively are connected in series. When electricity is passed 2.7 g Al is deposited on electrode. Calculate the weight of Cu deposited on cathode. [Cu = 63.5; Al = 27.0 ]

Answer: (B)

Solution

2.7 g Al = 0.1 mol requires 0.3 F (3 e per atom); the same 0.3 F in series deposits 0.15 mol Cu (2 F per mol) =

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Question ID VK-066859