A colouless solution of a compound gives a precipitate with `AgNO_(3)` solution but no precipitate with a solution of `Na_(2)CO_(3)`. The action of concentrated `H_(2)SO_(4)` on the compound liberates a suffocating reddish brown gas. The compound is `:`A. `Ba(CH_(3)COO)_(2)`B. `CaCl_(2)`C. `Nal`D. `NaBr`

A colouless solution of a compound gives a precipitate with `AgNO_(3)`

1.	A colouless solution of a compound gives a precipitate with `AgNO_(3)` solution but no precipitate with a solution of `Na_(2)CO_(3)`. The action of concentrated `H_(2)SO_(4)` on the compound liberates a suffocating reddish brown gas. The compound is `:`A. `Ba(CH_(3)COO)_(2)`B. `CaCl_(2)`C. `Nal`D. `NaBr`
Answer» Correct Answer - D `Ag^(+)+Br to AgBr darr ("pale yellow"),NaBr+Na_(2)CO_(3) to` No reaction. `2NaBr+2H_(2)SO_(4) to Br_(2) uarr ("reddish brown") +SO_(2)+SO_(4)^(2-)+2Na^(+)+2H_(2)O`

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