Which of the following pairs of ions are colourless? – InterviewSolution

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1.	Which of the following pairs of ions are colourless?
Answer» `TI^(2+),Cu^(+2)` `Sc^(+3) ,Zn^(+2)` `Co^(+2),Fe^(+3)` `NI^(+2),V^(+3)` ANSWER :B

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