Can spontaneous reactions occur between Zn^ 2+ and Au atoms? (E^ _ ox Values for zinc and gold are +0.76 V and -1.42 V resp.)

MHT CET Chemistry question

Can spontaneous reactions occur between Zn and Au atoms? ( Values for zinc and gold are +0.76 V and -1.42 V resp.)

Answer: (B)

The reaction would be 2Au + 3Zn → 2Au + 3Zn with E = E(Au) + E(Zn) = -1.42 + (-0.76) = -2.18 V; since it is negative

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Question ID VK-066377