March 07, 2012

Coordination Compounds One Mark Questions

1. [FeF6]4 – is paramagnetic because
a) F is a weaker ligand                            b) F is a stronger ligand
c) F is a flexidentate ligand                    d) F is a chelating ligand.
2. An example of a bidentate (chelating) ligand is
a) NO2                 b) NO3-                       c) en                            d) SO4–2 /
a) Cl-                      b) en                            c) NO2                       d) I-
3. An example of a chelating ligand is
a) Chloro               b) Bromo                     c) en                            d) NO2 / nitro.
4. An example of ambidentate ligand is
a) Cl                     b) NO2                              c) H2O                        d) NH3.
5. In [Fe(CN)6]4 – / [FeII(CN)6]4 – the central metal ion is
a) Fe                      b) Fe2+                         c) Fe3+                                     d) (CN)
6. The co-ordination number of Cr (III) in [Cr(H2O)4Cl2]Cl . 2H2O is
a) 3                        b) 4                              c) 6                              d) 2.
7. The coordination number of Ni (II) in [Ni(CN)4]2 – is
a) 2                        b) 4                              c) 5                              d) 6.
8. The coordination number of Nickel in the complex ion [NiCl4]2 – is
a) + 1                     b) +4                            c) +2                            d) +6.
9. The geometry of [Fe(CN)6]4 – is
a) Tetrahedral        b) Square Planar          c) Octahedral              d) Triangular
10. The geometry of [Ni(CN)4]2 – is
a) Tetrahedral        b) Square Planar          c) Triangular                d) Octahedral
11. The type of isomerism found in the complexes [Pt(NH3)4][CuCl4] & [PtCl4][Cu(NH3)4] is
a) ionization isomerism                             b) co-ordination isomerism
c) linkage isomerism                                  d) ligand isomerism.
12. Which of the following is cationic complex?
a) K4[Fe(CN)6]                                         b) [Cu(NH3)4]2+
c) K3[Cr(C2O4)3] / [Cr(C2O4)3]3 –         d) K3[Fe(CN)6].


13.The type of isomerism found in the complexes [Co(NO2)(NH3)5]SO4 and [Co(SO4)(NH3)5] NO2
a) Hydrate isomerism   b) Coordination isomerism   c) Linkage isomerism   d) Ionisation isomerism
FIVE MARKS

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