The correct statement about the magnetic properties of [Fe(CN) 6 ] 3- and [FeF 6 ] 3- is : (Z = 26).

[Fe(CN) 6 ] 3- is paramagnetic, [FeF 6 ] 3- is diamagnetic.

[Fe(CN) 6 ] 3- is diamagnetic, [FeF 6 ] 3- is paramagnetic.

HARD

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CFSE of octahedral complex of ${Mn}^{2 +}$ (low spin) will be: [Excluding pairing energy term ]

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Important Questions on Coordination Compounds

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The correct increasing order for the wavelengths of absorption in the visible region for the complexes of

{Co}^{3 +}

is:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The correct increasing order of trans-effect of the following species is

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

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

and

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

are of different colours in dilute solutions. Why?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The octahedral complex of a metal ion

M^{3 +}

with four monodentate ligands

L_{1}, L_{2}, L_{3} and L_{4}

absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The complex that has highest crystal field splitting energy

(∆)

, is:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The correct statement about the magnetic properties of [Fe(CN)₆]^3- and [FeF₆]^3- is : (Z = 26).

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

Jahn-Teller effect is not observed in high spin complexes of

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The calculated spin-only magnetic moments

(B M)

of the anionic and cationic species out of

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

and

{[Fe {(CN)}_{6}]}^{4 -}

respectively, are:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

Two complexes

[Cr {(H_{2} O)}_{6}] {Cl}_{3} (A)

and

[Cr {({NH}_{3})}_{6}] {Cl}_{3} (B)

are violet and yellow coloured, respectively, The incorrect statement regarding them is:

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

When concentrated

HCl

is added to aqueous solution of

C o C l_{2}

, its colour changes from reddish pink to deep blue. Which complex ion gives blue colour in reaction?

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The correct statement(s) regarding the binary transition metal carbonyl compounds is (are) (Atomic numbers:

F e = 26, N i = 28

)

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

Homoleptic octahedral complexes of a metal ion

' M^{3 +}'

with three monodentate ligands

L_{1}, L_{2} a n d L_{3}

absorb wavelengths in the region of green, blue and red respectively. The increasing order of the ligand strength is:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

Identify the correct trend given below:

(Atomic No. = Ti : 22, Cr : 24 and Mo : 42)

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

Pick out the correct statement with respect to

[Mn (CN)_{6}]^{3 -} .

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

What is the correct electronic configuration of the central atom in

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

based on crystal field theroy?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

Three complexes,

{[C o C l {(N H_{3})}_{5}]}^{2 +} (I), {[C o {(N H_{3})}_{5} H_{2} O]}^{3 +} (I I)

and

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

absorb light in the visible region. The correct order of the wavelength of light absorbed by them is:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The correct order of the spin –only magnetic moment of metal ions in the following low-spin complexes,

{[V {(C N)}_{6}]}^{4 -}, {[F e {(C N)}_{6}]}^{4 -}, {[R u {(N H_{3})}_{6}]}^{3 +}

and

{[C r {(N H_{3})}_{6}]}^{2 +},

is:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

In Wilkinson's catalyst, the hybridization of central metal ion and its shape are respectively:

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

Which of the following complex ions has electrons that are symmetrically filled in both

t_{2 g}

and

e_{g}

orbitals?

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Crystal Field Theory (CFT)

The correct option(s) regarding the complex

{[Co (en) {({NH}_{3})}_{3} (H_{2} O)]}^{3 +}

is (are)

(en

= H_{2} {NCH}_{2} {CH}_{2} {NH}_{2}

)

CFSE of octahedral complex of Mn2+ (low spin) will be: [Excluding pairing energy term ]

Important Questions on Coordination Compounds

Learn and Prepare for any exam you want !

CFSE of octahedral complex of ${Mn}^{2 +}$ (low spin) will be: [Excluding pairing energy term ]