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Q.

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 in W and X are Y and Z, respectively. Correct statement(s)is (are)

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a

Both Y and Z are colored and have tetrahedral shape

b

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

c

Y is diamagnetic in nature while Z is paramagnetic

d

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

answer is A, B, D.

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Detailed Solution

MnO2+KOH+O2MnO42(N)e-MnO4(x)

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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 in W and X are Y and Z, respectively. Correct statement(s)is (are)