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Which of the following compound(s) gives...

Which of the following compound(s) gives green solution, when treated with `K_(2)Cr_(2)O_(7)` and dilute `H_(2)SO_(4)`?

A

`KNO_(3)`

B

`NaHSO_(3)`

C

`NaHCO_(3)`

D

`Na_(2)SO_(3)`

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The correct Answer is:
B, D
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