NEET 2018, Chemistry Q26: Colour, Magnetism And Stability Of Co-ordination Compounds

NEET2018Paper 2018Chemistry

Q.

Which one of the following ions exhibits d-d transition and paramagnetism as well?

A
$C r O_{4}^{- 1}$
B
$M n O_{4}^{-}$
C
$C r_{2} O_{7}^{2 -}$
D
$M n O_{4}^{2 -}$

Solution

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