Question

Explain why zinc salts are colourless while Cu(II) compounds are coloured ?

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Answer 1

Answer:

. Cu2+ (3d 9 4s 0) has one unpaired electron in d-subshell which absorbs radiation in visible region resulting in d-d transition and hence Cu2+ salts are coloured. ... No radiation is absorbed for d- d transition and hence Zn2+ salts are colourless.

Answer 2

This is ur answer

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