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13-11-2021
Chemistry

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why do we use acid during the detection of halogens

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fayizgaming01 fayizgaming01

13-11-2021

Answer:

Nitric acid decomposes sodium cyanide and sodium halide. else, they precipitate in test and misguide the result. Therefore, dilute nitric acid is added before testing halogens to expel all the gases if evolved.

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