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JEE Main 20211 SeptemberEvening Shift
Exam
JEE Main
Year
2021
Date
1 September
Shift
Evening Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2021 · 1 September · Evening Shift · Chemistry · d and f Block Elements

In the given chemical reaction, colors of the Fe ^ 2 + and Fe ^ 3 +...

In the given chemical reaction, colors of theFe2+{Fe}^{2 +} and Fe3+{Fe}^{3 +} ions, are respectively :

5Fe2++MnO4−+8H+→Mn2++4H2O+5Fe3+5{Fe}^{2 +} + {MnO}_{4}^{-} + 8{H}^{+} \to {Mn}^{2 +} + 4{H}_{2}O + 5{Fe}^{3 +}

Options

  1. AYellow, Green
  2. BYellow, Orange
  3. CGreen, Orange
  4. DGreen, Yellow

Correct answer

D. Green, Yellow

Step-by-step solution

Configuration Example Colour
3d63{d}^{6} Fe+2{Fe}^{+ 2} Green
3d53{d}^{5} Fe+3{Fe}^{+ 3} Yellow
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