Verified Solution • 2025–26 Session moderate

QAIPM-2011-Ch-1800: NEET 2011 Chemistry - Class 12 AIPM-2011-Ch-1800 Solution: A solution contains \(Fe^{2+}\), \(Fe^{3+}\) and \(I^-\) ions.…

A solution contains Fe2+Fe^{2+}, Fe3+Fe^{3+} and I−I^- ions. This solution was treated with iodine at 35∘C35^\circ C. E∘E^\circ for Fe3+/Fe2+Fe^{3+}/Fe^{2+} is +0.77 V and E∘E^\circ for I2/2I−I_2/2I^- = 0.536 V. The favourable redox reaction is

Multiple Choice Options

  • A I2I_2 will be reduced to I−I^-
  • B there will be no redox reaction
  • C I−I^- will be oxidised to I2I_2
  • D Fe2+Fe^{2+} will be oxidised to Fe3+Fe^{3+}

Step-by-Step Verified Solution

Since the reduction potential of Fe 3+ /Fe 2+ is greater than that of I 2 /I � , Fe 3+ will be reduced and I � will be oxidised. 2Fe 3+ + 2I � _ 2Fe 2+ + I 2

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