When an acidified solution of ferrous ammonium sulphate it treated with potassium permanganate solution, the ion which is oxidised is
When an acidified solution of ferrous ammonium sulphate it treated with potassium permanganate solution, the ion which is oxidised is
- A
$Mn{O_4}$
- B
$NH_4^ + $
- C
$F{e^{ + 2 }}$
- D
$SO_4^{2 - }$
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