1.

Statement-1:Cuprous ion (Cu^+) is colourless whereas cupric ion (Cu^(2+))produce blue colour in solution. Statement-2:Cupros ion Cu^+ has unpaired electrons while cupric ion Cu^(2+) does not .

Answer»

Statement-1 is True, Statement-2 is True, Statement-2 is a correct EXPLANATION for Statement-1
Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
Statement-1 is True, Statement-2 is FALSE.
Statement-1 is False, Statement-2 is True.

Solution :Cupric ion proudces BLUE colour in solution due to the presence of unpaired electrons (d-d TRANSITION) while cuprous ion does not have unpaired ELECTRON.


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