Chemistry - Salt Analysis Question with Solution | TestHub

Pb(CH₃COO)₂ + K₂CrO₄ → PbCrO₄ (Yellow ppt)
Lead chromate is a yellow precipitate.

AgNO₃ + K₂CrO₄ → Ag₂CrO₄ (Brick-red ppt)
Silver chromate forms a brick-red (reddish-brown) precipitate, not yellow.

AgNO₃ + KI → AgI (Yellow ppt)
Silver iodide is a yellow precipitate.

CdSO₄ + H₂S → CdS (Yellow ppt)
Cadmium sulphide forms a yellow precipitate.

Correct Answer: (B) – AgNO₃ solution is treated with K₂CrO₄, because it produces a brick-red precipitate, not a yellow one.