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Which of the following cations will turn...

Which of the following cations will turn a borax bead green in an oxidising flame?

A

`Fe^(2+)`

B

`Mn^(2+)`

C

`Cr^(3+)`

D

`Cu^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A, C
`Fe^(+2), Cr^(+3)` colours changed as per cold and hot conditions
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