Question

Fusion of MnO₂ with KOH in presence of O₂ produces a salt W. Alkaline solution of W upon electrolytic oxidation yields another salt X. The manganese containing ions present in W and X, respectively, are Y and Z. Correct statement(s) is(are) 

(A) Both Y and Z are coloured and have tetrahedral shape 

(B) In aqueous acidic solution, Y undergoes disproportionation reaction to give Z and MnO₂ 

(C) Y is diamagnetic in nature while Z is paramagnetic 

(D) In both Y and Z, π-bonding occurs between p-orbitals of oxygen and d-orbitals of manganese

Answer 1

Correct Option :- (A, B, D)

Explanation :-

K₂MnO₄ is green in colour and KMnO₄ is in purple colour. Both are tetrahedral in shape involving pπ – dπ bond.