The purpose of boiling sodium extract with conc. `HNO_(3)` before testing for halogen is :A. to make solution acidicB. to make solution clearC. to convert `Fe^(+2)` to `Fe^(+3)`D. to convert NaCN to HCN and `Na_(2)S` to `H_(2)S` so that they do not interfere with `AgNO_(3)`

The purpose of boiling sodium extract with conc. `HNO_(3)` before test

1.	The purpose of boiling sodium extract with conc. `HNO_(3)` before testing for halogen is :A. to make solution acidicB. to make solution clearC. to convert `Fe^(+2)` to `Fe^(+3)`D. to convert NaCN to HCN and `Na_(2)S` to `H_(2)S` so that they do not interfere with `AgNO_(3)`
Answer» Correct Answer - D

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The purpose of boiling sodium extract with conc. `HNO_(3)` before testing for halogen is :A. to make solution acidicB. to make solution clearC. to convert `Fe^(+2)` to `Fe^(+3)`D. to convert NaCN to HCN and `Na_(2)S` to `H_(2)S` so that they do not interfere with `AgNO_(3)`

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