Which of the following ions is coloured? – InterviewSolution

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1.	Which of the following ions is coloured?
Answer» `Cu^(+)` `Cu^(+2)` `Ti^(+2)` `V^(+3)` Solution :`Cu^(+2) , Ti^(+2), V^(+3)` has UNPAIRED ELECTRONS in d-block can exhibit COLOUR

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