occupgmc3768 occupgmc3768

13-11-2021
Chemistry

contestada

why do we use acid during the detection of halogens

Respuesta :

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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