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

Engineering

Chemistry

Dichromate and Permanganate Ion Reactions

Question

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

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

Y is diamagnetic in nature while Z is paramagnetic

In aqueous acidic solution, Y undergoes disproportionation reaction to give Z and MnO₂.

Both Y and Z are coloured and have tetrahedral shape

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y = Mn⁺⁶ and z = Mn⁺⁷