(O.A)KMnO+7 Acidic medium Mn2+
X is difference in oxidation state.
6CH3COO⊖+Fe3++H2O→[Fe3(OH2)(CH3COO)6]⊕+2H⊕
[Fe3(OH)2(CH3COO)6]⊕(Brown red ppt)+4H2O→[Fe(OH)2(CH3COO]+CH3COOH+H⊕
Fe3+⇒3 d54 s0 contains 5 d electrons
So Y=5
X+Y=5+5=10
KMnO4 acts as an oxidising agent in acidic medium. ' X ' is the difference between the oxidation states of Mn in reactant and product. ' Y ' is the number of ' d ' electrons present in the brown red precipitate formed at the end of the acetate ion test with neutral ferric chloride. The value of X+Y is ______.
Held on 4 Apr 2025 · Verified 6 Jul 2026.
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