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Q.

Colour exhibited by manganate ion is due to 

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a

 charge transfer from metal to anion        

b

d – d transitions

c

charge transfer from anion to metal

d

excitation of 4s e- to vacant 4p orbitals

answer is A.

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Detailed Solution

MnO4-2d1has unpaired d-electrons , it undergoes d-d transition and exhibits green colour

 

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