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

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-

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

(a)

3

(b)

4

(c)

0

(d)

15

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

Choose the correct statement.

(a)

Square planar complexes are more stable than octahedral complexes

(b)

The spin only magnetic moment of [Cu(Cl)₄]^2- is BM and it has square planar structure.

(c)

Crystal field splitting energy \(\left( { \Delta }_{ 0 } \right) \) [FeF₆]^4- is higher than the \((\Delta _{ 0 })\) of [Fe(CN)₆]^4- 

(d)

crystal field stabilization energy of [V(H₂O)₆]²⁺ is higher than the crystal field stabilization of [Ti(H₂O)₆]²⁺

Primary and secondary valencies of Cu in [Cu(NH₃)₄]SO₄ is _______.

(a)

4,4

(b)

2,4

(c)

4,1

(d)

4,2

Which of the following octahedral complexes do not show geometrical isomerism?

(a)

[Co(NH₃)₃Cl₃]

(b)

[PtCl₂(NH₃)₄]

(c)

[Pt(NH₃)₂Cl₂]

(d)

[Co(en)₃]³⁺

IUPAC name of H₂[Ptcl₆] is _______.

(a)

Hexa chloridoplatinum (IV) acid

(b)

Hexa chloridoplatinum (IV) acid

(c)

Hexachloridoplatinic (IV) acid

(d)

Dihydrogenhexaehloro platinate (IV)

The name of complex ion, [Fe(CN)₆]^3- is _______.

(a)

Trieyanoferrate (III) ion

(b)

Hexacyano iron (III) ion

(c)

Hexacyanitoferrate (III) ion

(d)

Hexacyanido ferrate (III) ion

In Co-ordination compound. [Cr(en)₃][CrF₆] _______.

(a)

ligand is en (ethylenediamine)

(b)

Oxidation state of central atom is +3

(c)

Central metal is Cr (in anomie complexes)

(d)

Cation complex is [Co(NH₃)₄Cl₂]⁺

Write the IUPAC names for the following complexes.

Based on VB theory explain why [Cr(NH₃)₆]³⁺ is paramagnetic, while [Ni(CN)₄]^2- is diamagnetic.

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.

Write the IUPAC name of the complex.

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

Write briefly about the applications of coordination compounds in volumetric analysis

Write the postulates of Werner’s theory.

Why tetrahedral complexes do not exhibit geometrical isomerism.

Draw the structure of the following homoleptic metal carbonyl.
(i) [Ni(CO)₄]
(ii) [Fe(CO)₅]
(iii) [Cr(CO)₆]

What is the coordination entity formed when excess of liquid ammonia is added to an aqueous solution of copper sulphate?

Give the postulates and limitation of Werner's theory of co-ordination compounds.

Give the structure for the following compounds.
(i) pentaamminechlorocobalt (III) ion
(ii) Triamminetrinitrito- k N cobalt (III)
(ill) tetraammineaquabromidooobalt(III)nitrate
(iv) Dichloridobisethane-(1,2-diamine) cobalt (lIl) chloride
(v) Tetraamminecopper (lI) sulphate