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MHT CET Chemistry question

ChemistryElectrochemistryMHT CET

A solution of a trivalent metal ion is electrolysed by a current of 5 A for 10 minutes, during this time 1.18 g of metal was plated out. The identity of the metal is

Answer: (C)

Solution

Q = 5 × 600 = 3000 C = 0.0311 F, so moles of + = 0.0311/3 = 0.01036 and molar mass = 1.18/0.01036 ≈ 113.9

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Question ID VK-066823