CLASS XII HOLIDAY HOME WORK 2016 chapter CO-ORDINATION COMPOUNDS

CO-ORDINATION COMPOUNDS

1.Write the name and draw the structure of each of the following complex compounds:

a. [Co(NH3)4(H2O)2]Cl3

b. [pt(NH3)4[NiCl4]

2. Illustrate the following with an example each (i) linkage isomerism (ii) co-ordination isomerism (iii) outer orbital complex (iv) bidentate ligand (v) ambident ligand.

3.why is [NiCl4]-2 parmagnetic?

4. Explain how the two complexes of nickel [Ni(CN)4]-2 and [Ni(CO)4] have different structures but do not differ in their magnetic behaviour?

5. Compare the following complexes w.r.t their shape, magnetic behaviour and the hybrid orbitals involved: a. [CoF4]-2 

b. [Cr(H2O)2(C2O4)2]- 

c. [Ni(CO)4]

6.three geometrical isomers are possible for [Co(en)(H2O)2(NH3)2]+2. Draw molecular structures of these three isomers and indicate which one of them is chiral?

why is CO a stronger ligand than Cl-?

7. name the following complexes:

a. [Pt(NH3)4Cl2]Cl2

b. K3[CrF6]

c.[CoCl2(en)2]Cl

d.[Co(en)3]+3

e.[Cr(NH3)5(NCS)][ZnCl4]

f.[Pt(NH2CH3)(NH3)2]Cl

g.K4[Mn(CN)6]

8. Explain crystal field splitting in an octahedral complex?

9. Square

planar complexes of MX2L2 type with co-ordination number 4 exhibit geometrical isomerism, where as tetrahedral complexes with similar co-ordination number do not . Why?
10.State reason for the following:
a. CO is a stronger complexing reagent than NH3.
b. Nickel (II) does not form low spin octahedral complexes.
c. the pi complexes are known for transition metals only.
d. Co+2 is easily oxidised to Co+3 in the presence of strong field ligand
11. Name the following co-ordination entities and draw the structures of their stereo isomers:
a. [Co(en)2Cl]+
b.[Cr(C2O4)3]-3
c.[Co(NH3)3Cl3]