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Yogesh Bhai Shankar
Asked: 2022-10-29T01:33:25+05:30 In:

Nitric acid is added to sodium fusion extract and the solution is boiled before adding silver nitrate for testing halogens because
A. the extract is alkaline and thus must be neutralized.
B. intric acid decomposes sodium cyanide or sodium sulphide (if present) to hydrogen cyanide and hydrogen sulphide gases, respectively.
C. nitric acid oxidizes halogen to halide ion.
D. nitric acid dissolves silver nitrate.

Nitric acid is added to sodium fusion extract and the solution is boiled before adding silver nitrate for testing halogens because
A. the extract is alkaline and thus must be neutralized.
B. intric acid decomposes sodium cyanide or sodium sulphide (if present) to hydrogen cyanide and hydrogen sulphide gases, respectively.
C. nitric acid oxidizes halogen to halide ion.
D. nitric acid dissolves silver nitrate.
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1 Answer

  1. Correct Answer – B
    `NaCN + HNO_(3) rarr HCN + NaNO_(3)`
    `Na_(2)S + HNO_(3) rarr H_(2)S + NaNO_(3)`

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