E^ Cu/Cu^ +2 = +0.34 V, E^ Sn/Sn^ +2 = -0.14 V, E^ Zn/Zn^ 2+ = -0.76 V. Predict spontaneous reaction.

MHT CET Chemistry question

E Cu/Cu = +0.34 V, E Sn/Sn = -0.14 V, E Zn/Zn = -0.76 V. Predict spontaneous reaction.

Answer: (D)

Silver ion (E = +0.80 V) is a stronger oxidising agent than Cu, so it spontaneously oxidises Cu: Cu + 2Ag → Cu + 2Ag; Fe

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Question ID VK-066379