🛠️ JEE🧪 Chemistry

Consider the cell at \(25^{\circ} \mathrm{C}\) \(\mathrm{Zn} \mid \mathrm{Zn}^{2+}(\mathrm{aq}),(1 \mathrm{~M}) \| \math…

Q1

Consider the cell at \(25^{\circ} \mathrm{C}\)

\(\mathrm{Zn} \mid \mathrm{Zn}^{2+}(\mathrm{aq}),(1 \mathrm{~M}) \| \mathrm{Fe}^{3+}(\mathrm{aq}), \mathrm{Fe}^{2+}\) (aq) | Pt(s)

The fraction of total iron present as \(\mathrm{Fe}^{3+}\) ion at the cell potential of \(1.500 \mathrm{~V}\) is \(x \times 10^{-2}\). The value of \(x\) is ____. (Nearest integer)

(Given: \({\mathrm{E}}_{{\mathrm{Fe}}^{3+}/{\mathrm{Fe}}^{2+}}^{\mathrm{o}}=0.77\mathrm{V},{\mathrm{E}}_{{\mathrm{zn}}^{2+}/\mathrm{Zn}}^{\mathrm{o}}=−0.76\mathrm{V},\)\(\sqrt{10}=3.16\))

a

24

b

34

c

54

d

16

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