1. Tardigrade
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  3. Chemistry
  4. A salt on treatment with dil. HCl gives a 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

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Q. A salt on treatment with dil. HCl gives a 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

NTA AbhyasNTA Abhyas 2020

Solution:

$Ba ^{+2}+2 CH _{3} COO ^{-} \rightarrow\left( CH _{3} COO \right)_{2} Ba$

$BaS_{2}O_{3}$ gives $SO_{2}$ gas with dil. $HCl$ and also yellow ppt. of Barium chromate.

$\left( CH _{3} COO \right)_{2} Ba + K _{2} CrO _{4} \rightarrow 2 CH _{3} COOK +\underset{\text { (yellow ppt. })}{ BaCrO _{4} \downarrow}$