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Colour of  NiH2O6+2  and Nien3+2  respectively will be

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By Expert Faculty of Sri Chaitanya
a
Pink, blue
b
Green, Pink
c
Green, violet
d
Pale blue, violet

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detailed solution

Correct option is C

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.


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