QJEEM24Ch6db2: JEE Main 2024 Chemistry - Class 12 JEEM24Ch6db2 Solution: For the electro chemical cell M

Question

Verified Solution • 2025–26 Session moderate

For the electro chemical cell

$M | M^{2 +} | | X | X^{2 -}$

If $E_{(M^{2 +} / M)}^{0} = 0.46 V$ and $E_{(x / x^{2 -})}^{0} = 0.34 V$ .

Which of the following is correct?

Accepted Answer

$\begin{aligned} E_{cell}^{\circ} = E_{X ∣ X^{2 -}}^{\circ} - E_{M^{2 +} ∣ M}^{\circ} \\ = 0.34 - 0.46 \\ = - 0.12 V (Non-spontaneous) \end{aligned}$

So, reverse reaction will be spontaneous.

$M^{2 +} + X^{2 -} \to M + X$

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