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D and F Block Elements question

2019 · Shift 1 · Q11

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PYQ Library
JEE Advanced
Chemistry
D and F Block Elements
2019 · Shift 1 · Q11

D and F Block Elements question

2019 · Shift 1 · Q11

JEE AdvancedChemistryD and F Block ElementsMultiple correct+4 / −1

Fusion of

MnO_2

with

KOH

in presence of

O_2

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
Y is diamagnetic in nature while Z is paramagnetic
C
In both Y and Z, $\pi$ -bonding occurs between p-orbitals of oxygen and d-orbitals of manganese
D
In aqueous acidic solution, Y undergoes disproportionation reaction to give Z and $MnO_2$

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