An inorganic compound (A) is formed on passing a gas (B) through a con – InterviewSolution

1.	An inorganic compound (A) is formed on passing a gas (B) through a conc. liquor containing Na_(2)S and sodium sulphite.
Answer» Answer :The reactions indicate that the compound (A) is sodium thiosulphate. It is FORMED in STEP (i) by passing GAS (B) which is EITHER `I_(2)`. `Na_(2)S+Na_(2) underset((B))(SO_(3)+I_(2))rarr Na_(2)S_(2)O_(3)+2NaI`

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