Metal Ion Tests with K4[Fe(CN)6] (Jee Mains)

Qualitative Salt Analysis

Medium

Metal Ion Tests with K4[Fe(CN)6]

Choose the correct tests with respective observations.
(A) CuSO₄ (acidified with acetic acid) + K₄[Fe(CN)₆] → Chocolate brown precipitate.
(B) FeCl₃ + K₄[Fe(CN)₆] → Prussian blue precipitate
(C) ZnCl₂+ K₄[Fe(CN)₆], neutralised with NH₄OH → White or bluish white precipitate.
(D) MgCl₂+ K₄[Fe(CN)₆] → Blue precipitate.
(E) BaCl₂ + K₄[Fe(CN)₆], neutralised with NaOH → White precipitate.
Choose the correct answer from the options given below :

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