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KCET 2021 Chemistry Solved Paper

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Question : 50

Total: 60

Which of the following pairs has both the ions coloured in aqueous solution? [Atomic numbers ofSc=21,Ti=22,Ni=28,Cu=29,Mn=25]

Sc3+,Mn2+
Ni2+,Ti4+
Ti3+,Cu+
Mn2+,Ti3+

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