Question

The standard reduction potentials for Zn²⁺/Zn, Ni²⁺/Ni and Fe²⁺/Fe are –0.76,–0.23 and –0.44 V respectively. The reaction $X+Y^{2+} \longrightarrow X^{2+} +Y$ will be spontaneous when :
(a) X = Ni, Y = Fe
(b) X = Ni, Y = Zn
(c) X= Fe, Y = Zn
(d) X= Zn, Y = Ni

Answer 1

$<b>$
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The standard reduction potentials for Zn²⁺/Zn, Ni²⁺/Ni and Fe²⁺/Fe are –0.76,–0.23 and –0.44 V respectively. The reaction $X+Y^{2+} \longrightarrow X^{2+} +Y$ will be spontaneous when :
(a) X = Ni, Y = Fe
(b) X = Ni, Y = Zn
(c) X= Fe, Y = Zn
(d) X= Zn, Y = Ni

→ [B]


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Answer 2

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➡️Option -: A

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