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Distinguish by a Chemical Test, Sodium Chloride And Sodium Sulphite - Chemistry

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Distinguish Between

Distinguish by a chemical test,

Sodium chloride and sodium sulphite

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Solution

Sodium thiosulphate and sodium sulphite:

The salts can be distinguished by using silver acetate. To the salt silver acetate and dil. HNO3 are added. If there is formation of a white precipitate which slowly turns black then it is thiosulphate anion since silver acetate forms Ag2S2O3 which being unstable in acid solution gets converted to black Ag2S.

Concept: Salts
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APPEARS IN

Selina Concise Chemistry Class 10 ICSE
Chapter 13 Practical Work
Exercise 13 | Q 8.2 | Page 229

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