Which of the following cartion (s) will turn blue in oxidising flame ?

1.	Which of the following cartion (s) will turn blue in oxidising flame ?A. `Co^(2+)`B. `Cr^(3+)`C. `Ni^(2+)`D. `Cu^(2+)`
Answer» Correct Answer - a,d

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Which of the following cartion (s) will turn blue in oxidising flame ?A. `Co^(2+)`B. `Cr^(3+)`C. `Ni^(2+)`D. `Cu^(2+)`

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