Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 69

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The octahedral complex of a metal ion $M^{3 +}$ with four monodentate ligands $L_{1}, L_{2}, L_{3}$ and $L_{4}$ absorb wave lengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is :

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Important Questions on Coordination Compounds

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 70

Which one of the following complexes shows optical isomerism?

(en $=$ ethylenediamine)

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 71

On treatment of

100 mL

of

0.1 M

solution of

{CoCl}_{3} . 6 H_{2} O

with excess

{AgNO}_{3}

;

1.2 \times 10^{22}

ions are precipitated. The complex is :

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 72

The oxidation states of

Cr

in

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

,

[Cr (C_{6} H_{6})_{2}]

and

K_{2} [Cr (CN)_{2} {(O)}_{2} (O_{2}) ({NH}_{3})]

respectively are:

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 73

The coordination number of

Th

in

K_{4} [Th {(C_{2} O_{4})}_{4} {({OH}_{2})}_{2}]

is:

(C_{2} O_{4}^{2 -} = Oxalato)

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 74

The IUPAC name of

K_{2} [Cr (CN)_{2} O_{2} (O)_{2} ({NH}_{3})]

is

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 75

Which one of the following high-spin complexes has the largest

C F S E

(Crystal field stabilization energy)

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 76

Which of the following statements is correct for complex

{[Cr ({NH}_{3}) {(CN)}_{4} (NO)]}^{2 -}

given that

n = 1

?

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Alpha Question Bank for Medical: Chemistry>Chapter 20 - Coordination Compounds>Exercise 2>Q 77

The coordination compounds have great importance in biological systems. In this context, which of the following statements is incorrect?