The sum of primary valence and secondary valence of the metal M in the complex [M(en)₂(Ox)]Cl is________.

(a)

3

(b)

6

(c)

-3

(d)

9

An excess of silver nitrate is added to 100ml of a 0.01M solution of pentaaquachloridochromium(III)chloride. The number of moles of AgCl precipitated would be _______.

(a)

0.02

(b)

0.002

(c)

0.01

(d)

0.2

IUPAC name of the complex K₃[Al(C₂O₄)₃] is _______.

(a)

potassiumtrioxalatoaluminium(III)

(b)

possiumtrioxalatoaluminate(II)

(c)

potassiumtrisoxalatoaluminate(III)

(d)

potassiumtrioxalatoaluminate(III)

A magnetic moment of 1.73BM will be shown by one among the following.

(a)

TiCl₄

(b)

[CoCl₆]^4-

(c)

[Cu(NH₃)₄]²⁺

(d)

[Ni(CN)₄]^2-

In which of the following coordination entities the magnitude of Δ₀ will be maximum?

(a)

[Co(CN)₆]^3-

(b)

[Co(C₂O₄)₃]^3-

(c)

[Co(H₂O)₆]³⁺

(d)

[Co(NH₃)₆]³⁺

Which one of the following will give a pair of enantiomorphs?

(a)

[Cr(NH₃)₆][Co(CN)₆]

(b)

[Co(en)₂Cl₂]Cl

(c)

[Pt(NH₃)₄][PtCl₄]

(d)

[Co(NH₃)₄Cl₂]NO₂

How many geometrical isomers are possible for [Pt(Py)(NH₃)(Br)(Cl)]?

(a)

3

(b)

4

(c)

0

(d)

15

Which kind of isomerism is possible for a complex [Co(NH₃)₄Br₂]CI?

(a)

geometrical and ionization

(b)

geometrical and optical

(c)

optical and ionization

(d)

geometrical only

A complex in which the oxidation number of the metal is zero is_______.

(a)

K₄[Fe(CN)₆]

(b)

[Fe(CN)₃(NH₃)₃]

(c)

[Fe(CO)₅]

(d)

both (b) and (c)

Fac-mer isomerism is shown by _______.

(a)

[CO(en)₃]³⁺

(b)

[Co(NH₃)₄(Cl)₂]⁺

(c)

[Co(NH₃)₃(Cl)₃]

(d)

[Co(NH₃)₅Cl]SO₄

Lead

(1)

Photosynthesis

Tin

(2)

Plumbate

[Ti(H₂O)₆]³⁺

(3)

Linear

Sp

(4)

Octatahedral, d²sp³

Chlorophyll

(5)

Stannate

Write the formula for the co-ordination compounds. 

[CuCl₄]^2- exists while [Cul₄]^2- does not exist why?

Give an example of coordination compound used in medicine and two examples of biologically important coordination compounds.

Draw all possible geometrical isomers of the complex [Co(en)₂Cl₂]⁺ and identify the optically active isomer.

[Ti(H₂O)₆]³⁺ is coloured, while [Sc(H₂O)₆]³⁺ is colourless- explain.

Define coordination number.

Give an example for complex of the type [Ma₂b₂c₂] where a, b, c are monodentate ligands and give the possible isomers.

What is linkage isomerism? Explain with an example.

Classify the following ligands based on the number of donor atoms.
a) NH₃
b) en
c) ox^2-
d) pyridine

Give the difference between double salts and coordination compounds.

Write the postulates of Werner’s theory.

Why tetrahedral complexes do not exhibit geometrical isomerism.

What is crystal field splitting energy?

What is crystal field stabilization energy (CFSE)?

What are the limitations of VB theory?