(A) For the testing of halogens,$HNO_3$ (Nitric acid) is added to the sodium extract. This is done because if $CN^-$ or $S^{2-}$ ions are present in t

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(A) For the testing of halogens,$HNO_3$ (Nitric acid) is added to the sodium extract. This is done because if $CN^-$ or $S^{2-}$ ions are present in the extract,they would interfere with the test by forming $AgCN$ or $Ag_2S$ precipitates. $HNO_3$ decomposes these ions into $HCN$ and $H_2S$ gases,respectively,which are then removed by boiling,ensuring that only halides react with $AgNO_3$.

Class 11 Chemistry 3 Organic Chemistry: Purification and Characterisation Chemical analysis of organic compounds

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Which of the following compounds is added to the sodium extract before the addition of silver nitrate for the testing of halogens?

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A
Nitric acid
B
Ammonia
C
Hydrochloric acid
D
Sodium hydroxide

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Class 11

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3 Organic Chemistry: Purification and Characterisation

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Chemical analysis of organic compounds

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Which of the following compounds is added to the sodium extract before the addition of silver nitrate for the testing of halogens?

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