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Standard XII

Chemistry

Valence Bond Theory

Which one of ...

Question

Which one of the following is an example of octahedral complex?

[F e F_{6}]^{3 -}

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{[Z n {(N H_{3})}_{4}]}_{4}^{2 +}

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{[N i {(C N)}_{4}]}_{4}^{2 -}

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{[C u {(N H_{3})}_{4}]}_{4}^{2 +}

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Solution

The correct option is A $[F e F_{6}]^{3 -}$
Six ligands are required for the octahedral complex. There are 6 $F^{-}$ ligands in $[F e F_{6}]^{3 -}$ .

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Similar questions

Consider following complexes :

[F e (H_{2} O)_{6}]^{2 +}

II :

[F e (C N)_{6}]^{4 -}

III :

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

IV :

[N i (H_{2} O)_{4}]^{2 +}

V :

[N i (C N)_{4}]^{2 -}

Out of this, select the complexes with octahedral geometry :

Q. If which of the following orders the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment?
(i)

[F e F_{6}]^{3 -}

(ii)

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

(iii)

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

(iv)

[C u (N H_{3})_{4}]^{2 +}

The complex, [Ni(CN)₄]^2-, has:

Q. How many in each of the following complexes obey the rule of

18

(EAN rule)?

(a)

[C u (N H_{3})_{4}]^{2 +}, [C u (e n)_{3}]^{2 +}, [C u (C N)_{4}]^{3 -}

(b)

[F e (C N)_{6}]^{4 -}, [F e (C N)_{6}]^{3 -}, F e (C O)_{6}

(c)

[N i (N H_{3})_{6}]^{2 +}, [N i (C N)_{4}]^{2 -}, [N i (C O)_{4}]

(d)

[C r (N H_{3})_{6}]^{3 +}, [C r (C O)_{6}]

(e)

[C o (N H_{3})_{6}]^{3 +}, [C o C l_{4}]^{2 -}

Atomic number of Mn, Fe, Co and Ni are 25, 26, 27 and 28 respectively. Which of the following outer orbital octahedral complexes have same number of unpaired electrons?
(a) $[M n C l_{6}]^{3 -}$
(b) $[F e F_{6}]^{3 -}$
(c) $[C o F_{6}]^{- 3 -}$
(d) $[N i (N H_{3})_{6}]^{2 +}$

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Which one of the following is an example of octahedral complex?

The correct option is A [FeF6]3−Six ligands are required for the octahedral complex. There are 6 F− ligands in [FeF6]3−.

The correct option is A $[F e F_{6}]^{3 -}$
Six ligands are required for the octahedral complex. There are 6 $F^{-}$ ligands in $[F e F_{6}]^{3 -}$ .