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  4. Colour of ZnSO4 is white. It is due to

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Q. Colour of $ ZnS{{O}_{4}} $ is white. It is due to

Rajasthan PETRajasthan PET 2001

Solution:

Colour of $ ZnS{{O}_{4}} $ is white. It is due to coupling of spin and transfer of electron. The formation of colours is due to absorption or emission of energy in visible region by the spinning and transfer of electron. If all the seven colours are reflected then white colour forms.