Q1 / 150 · MHT CET 2019 (Shift 1) · Chemistry

What is the shape and magnetic nature of permanganate ion?

A
Pyramidal diamagnetic
Correct answer
B
Tetrahedral, diamagnetic
C
Tetrahedral, paramagnetic
D
Planar, paramagnetic

Solution

The permanganate ions are tetrahedral. The

π -

bonding takes place by overlap of p- orbitals of oxygen with d- orbitals of manganese. It is also diamagnetic due to the absence of unpaired electron. The structure of permanganate ion is given below:

Hence, the correct answer is option: 'B'.

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