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Four different solutions containing 1 M each of A u + 3 , C u + 2 , A g + , L i + are being electrolysed by using inert electrodes. In how many samples, metal ions would be deposited at cathode? [Given: E 0 A g + / A g = 0.8 V , E 0 A u + 3 / A u = 1.00 V , E 0 C u + 2 / C u = 0.34 V , E 0 L i + / L i = - 3.03 V ]

Correct answer

3

Step-by-step solution

A g + , A u + 3 , C u + 2 SRP of H 2 O is more than SRP of lithium. ∴ H 2 O will be reduced at cathode in case of L i + aq. Solution

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