Colour of NiH2O6+2 and Nien3+2 respectively will be
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a
Pink, blue
b
Green, Pink
c
Green, violet
d
Pale blue, violet
answer is C.
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Detailed Solution
H2O is a weak field ligand.∴ NiH2O6+2……. Absorbs longer wavelength …. emits green colour Ethane 1, 2–diamine is a strong field ligand.∴ Nien3+2 …… absorbs shorter wave length ….. emits violet colour.