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Which ion will give colour in the aqueous solution ?A. `Zn^(+2)`B. `Cu^(+1)`C. `Ti^(+4)`D. `Cu^(2+)` |
Answer» Correct Answer - D `Cu^(2+)` , since all ions contain paired electrons . `Zn^(+2) 3d^10 4s^0` `Cu^(+1) 3d^10 3s^0 ` `Ti^(+4 ) 3d^0 4s^0` |
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