A salt on treatment with dil. HCl gives a pungent smelling gas and a yellow precipitate. The salt gives green flame when tested. The solution gives a yellow ppt. with potassium chromate. The salt is

Options

A. `NiSO_(4)`
B. `BaS_(2)O_(3)`
C. `PbS_(2)O_(3)`
D. `CuSO_(4)`

Answer

B

Explanation

`Ba^(+2) + 2CH_(3) COO^(-) to (CH_(3)COO)_(2) Ba`
`BaS_(2)O_(3)` gives `SO_(2)` gas with dil. HCl and also yellow ppt. of Barium chromate.
`(CH_(3)COO)_(2)Ba + K_(2)CrO_(4) to 2CH_(3)COOK + underset("(yellow ppt.)")(BaCrO_(4) darr)`