Which metal gives violet colour in oxidising flame when heated with borax ?

Which metal gives violet colour in oxidising flame when heated with borax ?
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Which metal gives violet colour in oxidising flame when heated with borax ? A. Fe B. Pb C. Co D. Mn
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Sodium borate on reaction with conc. `H_2 SO_4` and `C_2 H_5 OH` gives a compound A which burns with a green edged flame. The compound A is

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Last Answer : Ans: a

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