Which of the following compound is added to the sodium extract before addition of silver nitrate for testing of halogens?
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a
Ammonia
b
Nitric acid
c
Hydrochloric acid
d
Sodium hydroxide
answer is B.
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Detailed Solution
HNO3is added to sodium fusion extraction before addition of for testing halogesn becomes HNO3 oxidize the any impurities like N, S, present, they can be oxidized.