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

Question

A salt on treatment with dil. HCl give: pungent smelling gas and a yellow precipitate The salt gives green flame when tested. The salt solution gives a yellow precipitate with potassium chromate. The salt is (A)  NiSO4  (B)  BaS2O3  (C)  PbS2O3  (D)  CuSO4

Tardigrade Admin · Accepted Answer

Since the salt on treatment with dil. HCl gives a pungent smelling gas and a yellow ppt, it contains S2O2−3 ion. S2O32- + 2HCl → underset textyellow ppt.S downarrow + underset textPungent smelling gasSO2 downarrow + H2O + 2Cl- As it gives green colour to flame, hence contains Ba2+ ion. ∴ The salt is BaS2O3. BaS2O3 + K2CrO4 → underset textyellow ppt.BaCrO4 + K2S2O3

Q. A salt on treatment with dil. $H Cl$ give: pungent smelling gas and a yellow precipitate The salt gives green flame when tested. The salt solution gives a yellow precipitate with potassium chromate. The salt is

$N i S O_{4}$

$B a S_{2} O_{3}$

$P b S_{2} O_{3}$

$C u S O_{4}$

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

NiSO4​

BaS2​O3​

PbS2​O3​

CuSO4​

Q. A salt on treatment with dil. $H Cl$ give: pungent smelling gas and a yellow precipitate The salt gives green flame when tested. The salt solution gives a yellow precipitate with potassium chromate. The salt is

$N i S O_{4}$

$B a S_{2} O_{3}$

$P b S_{2} O_{3}$

$C u S O_{4}$