Match the complexions given in column I with their colour given in column II and mark the appropriate choice.
Column I
(Complex ion) Column II
(Colour)
(A) $[C o F_{6}]^{3 -}$ (i) Blue - Green
(B) $[C o (N H_{3})_{6}]^{3 +}$ (ii) Pale yellow
(C) $[C o (H_{2} O)_{6}]^{3 +}$ (iii) Green
(D) $[C o (C N)_{6}]^{3 -}$ (iv) Yellow - orange

(A) \to (i i i), - (B) \to (i v), - (C) \to (i i), - (D) \to (i)

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(A) \to (i i i), - (B) \to (i v), - (C) \to (i), - (D) \to (i i)

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(A) \to (i), - (B) \to (i i i), - (C) \to (i v), - (D) \to (i i)

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(A) \to (i v), - (B) \to (i), - (C) \to (i i i), - (D) \to (i i)

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Solution

The correct option is D $(A) \to (i i i), - (B) \to (i v), - (C) \to (i), - (D) \to (i i)$
$[C o F_{6}]^{3 -} \Rightarrow$ Green.
$[C o (N H_{2})]^{3 +} \Rightarrow$ Yellow-Orange.
$[C o (N H_{2})_{6}]^{3 +} \Rightarrow$ Yellow-Orange.
$[C o (H_{2} O)_{6}]^{3 +} \Rightarrow$ Blue Green.
$[C o (C N)_{6}]^{3 -} \Rightarrow$ Pale Yellow.

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Similar questions

Q. Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	$[F e (C N)_{6}]^{3 -}$	(i)	$Z e r o$
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\begin{matrix} C o l u m n I & C o l u m n I I (A) & X e F_{6} & (i) & d i s t o r t e d o c t a h e d r a l (B) & X e O_{3} & (i i) & s q u a r e p l a n a r (C) & X e O F_{4} & (i i i) & p y r a m i d a l (D) & X e F_{4} & (i v) & S q u a r e p y r a m i d a l \end{matrix}

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	Column I (Complex ion)		Column II (Colour)
(A)	$[C o F_{6}]^{3 -}$	(i)	Blue - Green
(B)	$[C o (N H_{3})_{6}]^{3 +}$	(ii)	Pale yellow
(C)	$[C o (H_{2} O)_{6}]^{3 +}$	(iii)	Green
(D)	$[C o (C N)_{6}]^{3 -}$	(iv)	Yellow - orange

Match the complexions given in column I with their colour given in column II and mark the appropriate choice.Column I(Complex ion)Column II(Colour)(A)[CoF6]3−(i)Blue - Green(B)[Co(NH3)6]3+(ii)Pale yellow(C)[Co(H2O)6]3+(iii)Green(D)[Co(CN)6]3−(iv)Yellow - orange

The correct option is D (A)→(iii),−(B)→(iv),−(C)→(i),−(D)→(ii)[CoF6]3−⇒ Green.[Co(NH2)]3+⇒ Yellow-Orange.[Co(NH2)6]3+⇒ Yellow-Orange.[Co(H2O)6]3+⇒ Blue Green.[Co(CN)6]3−⇒ Pale Yellow.