JEE Main · 2024 · 08 Apr 2024 · Shift 1 · Coordination Compounds

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Match List I with List II:
List-I (Compound): A. Fe₄[Fe(CN)₆]₃·xH₂O B. [Fe(CN)₅NOS]⁴⁻ C. [Fe(SCN)]²⁺ D. (NH₄)₃PO₄·12MoO₃
List-II (Colour): I. Violet II. Blood Red III. Prussian Blue IV. Yellow
Choose the correct answer from the options given below:

(A)A-III, B-I, C-II, D-IV✓ Correct
(B)A-IV, B-I, C-II, D-III
(C)A-II, B-III, C-IV, D-I
(D)A-I, B-II, C-III, D-IV

Answer: (A)

Solution

Characteristic colours:

F e_{4} [F e (C N)_{6}]_{3} \cdot x H_{2} O

= Prussian blue (III);

[F e (C N)_{5} N O S]^{4 -}

= violet (I);

[F e (S C N)]^{2 +}

= blood red (II);

(N H_{4})_{3} P O_{4} \cdot 12 M o O_{3}

= yellow (IV). So A-III, B-I, C-II, D-IV — option (1).

JEE Main · 2024 · 08 Apr 2024 · Shift 1 · Single correct option

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