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Valence Bond Theory

Among the fol...

Question

Among the following, which complex compound is diamagnetic?
i) $[C o (N H_{3})_{6}] C l_{3}$ ,
ii) $[N i (N H_{3})_{6}] C l_{2}$ ,
iii) $[C r (H_{2} O)_{6}] C l_{3}$ ,
iv) $[F e (H_{2} O)_{6}] C l_{2}$

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Solution

The correct option is B i
(i) $[C o (N H_{3})_{6}] C l_{3}$ has $C o^{3 +}$ ion with 0 unpaired electrons. It is diamagnetic.
(ii) $[N i (N H_{3})_{6}] C l_{2}$ has $N i^{2 +}$ ion with 2 unpaired electrons. It is paramagnetic.
(iii) $[C r (H_{2} O)_{6}] C l_{3}$ has $C r^{3 +}$ ion with 3 unpaired electrons. It is paramagnetic.
(iv) $[F e (H_{2} O)_{6}] C l_{2}$ has $F e^{2 +}$ ion with 4 unpaired electrons. It is paramagnetic.

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Similar questions

(i) [C o (N H_{3})_{5}] C l_{3}, (i i) [N i (N H_{3})_{5}] C l_{2}, (i i i) [C r (H_{2} O)_{6}] C l_{3}, (i v) [F e (H_{2} O)_{6}] C l_{2}

(K) : K_{3} [F e (C N)_{6}]

(L) : [C o (N H_{3})_{6}] C l_{3}

(M) : N a_{3} [C o (o x a l a t e)_{3}]

(N) : [N i (H_{2} O)_{6}] C l_{2}

(O) : K_{2} [P t (C N)_{4}]

(P) : [Z n (H_{2} O)_{6}] (N O_{3})_{2}

[C o (N H_{3})_{3} C l_{3}]

[C o (N H_{3})_{4} C l_{2}] C l

[C o (N H_{3})_{6}] C l_{3}

[C o (N H_{3})_{5} C l] C l_{2}

[C o (N H_{3})_{6}] C l_{3}

[P t (N H_{3})_{2} C l (N H_{2} C H_{3})] C l

[T i (H_{2} O)_{6}]^{3 +}

[C o (N H_{3})_{4} C l (N O_{2}] C l

[M n (H_{2} O)_{6}]^{2 +}

[N i C l_{4}]^{2 -}

[N i (N H_{3})_{6}] C l_{2}

[C o (e n)_{3}]^{3 +}

[N i (C O)_{4}]

K_{3} [F e (C N_{6}] - K

[C o (N H_{3})_{6}] C l_{3} - L

N a_{3} [C o (o x a l a t e)_{3}] - M

[N i (H_{2} O)_{6}] C l_{2} - N

K_{2} [P t (C N)_{4}] - O

[Z n (H_{2} O)_{6}] (N O_{3})_{2} - P

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