Sodium extract is heated with con. `HNO_(3)` before testing for halogens becauseA. `S^(2-)` and `CN^(-)`, if present are decomosed by conc. `HNO_(3)` and hence do not interfere in the testB. `Ag` reacts faster with halides in acidix mediumC. `Ag_(2)S` and `AgCN` are soluble in acidic mediumD. silver halides are totally insoluble in nitric acid

Sodium extract is heated with con. `HNO_(3)` before testing for haloge

1.	Sodium extract is heated with con. `HNO_(3)` before testing for halogens becauseA. `S^(2-)` and `CN^(-)`, if present are decomosed by conc. `HNO_(3)` and hence do not interfere in the testB. `Ag` reacts faster with halides in acidix mediumC. `Ag_(2)S` and `AgCN` are soluble in acidic mediumD. silver halides are totally insoluble in nitric acid
Answer» Correct Answer - A

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