2. • Two or more compounds that have the same
chemical formula, but different arrangement
of atoms are called _______
a) Isotopes
b) Isotones
c) Isomers
d) Allotropes
• c) Isomers
3. • Optical isomers are also known as
__________
a) structural isomers
b) facial isomers
c) meridional isomers
d) enantiomers
• d) enantiomers
4. • The optical isomer that rotates the plane of
polarised in the clockwise direction is called
______
a) trans
b) dextro
c) mer
d) laevo
• b) dextro
5. • Which type of isomerism exhibits compounds
with same chemical formula and bonds but
different spatial arrangement?
a) Optical isomerism
b) Linkage isomerism
c) Structural isomerism
d) Solvate isomerism
• a) Optical isomerism
6. • Which of the following is not a subdivision of
structural isomerism?
a) Geometrical isomerism
b) Linkage isomerism
c) Coordination isomerism
d) Ionisation isomerism
• a) Geometrical isomerism
7. • A coordination complex [MX2L2], has a CN=4
and two unidentate ligands X and L. When the
two L ligands are arranged opposite to each
other in its geometry, it is called _______
isomer.
a) cis
b) trans
c) fac
d) mer
• b) trans
8. • How many geometrical isomers are possible in
[Al(C2o4)3]3-?
a) 0
b) 2
c) 3
d) 4
• a) 0
9. • A tetrahedral compound of type [MP2Q2] has
two geometrical isomers.
a) True
b) False
• b) False
10. • How many geometrical isomers are possible in
a complex of type [MA2(D)2], where A is
unidentate and D is didentate?
a) 0
b) 2
c) 3
d) 4
• b) 2
11. • Identify the “trans” isomer of the square
planar complex [MABCD] is known to form
three isomers, two cis and one trans..
12. • Which of the following do not show
geometrical isomerism? (Assume all ligands
are unidentate)
a) Square planar [MXL3]
b) Square planar [MX2L2]
c) Octahedral [MX2L4]
d) Octahedral [MX3L3]
• a) Square planar [MXL3]
13. • In the coordination entity [Co(NH3)3(NO2)3], if all
three N atoms of the amine ligands occupy
adjacent positions at the corners of an octahedral
face, the geometrical isomer formed is known as
_______ isomer.
a) cis
b) trans
c) fac
d) mer
• c) fac
14. • Which of the following compounds has a
meridional isomer?
a) [Fe(NO)5Br]+
b) [Al(CO)3(NO2)3]
c) [K(NH)3)4(NO)2]+
d) [Fe(H2O)2(CO)2(NO)2]3+
• b) [Al(CO)3(NO2)3]
15. • Which of the following compounds has
enantiomers?
a) K3[Fe(CN)6]
b) K3[Al(C2O4)3]
c) K2[Zn(OH)4]
d) K2[PdCl4]
• b) K3[Al(C2O4)3]
16. • How many stereoisomers does the following
compound have?
a) 0
b) 2
c) 3
d) 4
• c) 3
1 geometric, 1 optical, 1 both geometric and optical
17. • The coordination entity [CrCl2(ox)2]3- is
optically active.
a) True
b) False
• b) False
18. • Linkage isomerism is seen in compounds
having ________ ligand.
a) unidentate
b) polydentate
c) chelate
d) ambidentate
• d) ambidentate
19. • Identify the type of isomerism exhibited by the
following structures.
a) Geometric isomerism
b) Optical isomerism
c) Linkage isomerism
d) Coordination isomerism
c) Linkage isomerism
20. • Which of the following compounds is not a
linkage isomer?
a) Hg[Co(SCN)4]
b) [Cr(H2O)5(NO2)]Cl2
c) [CoCl2(en)2]Cl
d) K[Cr(NH3)2(ONO)4]
• c) [CoCl2(en)2]Cl
21. • Linkage isomers exhibit different physical
properties.
a) True
b) False
• a) True
22. • Which of the following compounds does not
have a coordination isomer?
a) [Ag(NH3)2][Ag(CN)2]
b) [Cr(NH3)6][Co(CN)6]
c) [Zn(NH3)4][PtCl4]
d) [Cu(NH3)4][FeCl4]
• a) [Ag(NH3)2][Ag(CN)2]
23. • The compounds [Co(NH3)5Cl]SO4 and
[Co(NH3)5(SO4)]Cl are ________ isomers.
a) linkage
b) coordination
c) ionisation
d) solvate
• c) ionisation
24. • The compound [Co(NH3)5(NO2)](NO3)2 does
not show _________ isomerism.
a) coordination
b) optical
c) ionisation
d) linkage
• a) coordination
25. • Hydrate isomerism is a form of ________
isomerism.
a) coordination
b) linkage
c) ionisation
d) solvate
• d) solvate
26. • Which one of the following compounds will
exhibit linkage isomerism
a) [Pt (NH3)2 Cl2]
b) [Co (NH3)5 NO2] Cl2
c) [Co (NH3)4 Cl2] NO2
d) [Ag (NH3)2] NO2
• b) [Co (NH3)5 NO2] Cl2
27. • Which complex cannot ionize in solution?
a. [Pt(NH3)6]Cl4
b. K2[Pt(F6)]
c. K4[Fe(CN)6]
d. [CoCl3(NH3)3]
• d. [CoCl3(NH3)3]
28. • Which of the following square planar complex
ions can have cis-trans isomers?
a) [Pt(NH3)4]2+
b) [Ni(NH3)4]2+
c) [Pt(NH3)2Cl2]
d) [Pt(NH3)Cl3]−
• c) [Pt(NH3)2Cl2]
29. • A complex with the composition [MA2B2]X2 is
found to have no geometrical isomers. Both A
and B are monodentate ligands. The structure
of the complex is
a. Linear
b. Square planar
c. Tetrahedral
d. Octahedral
• c. Tetrahedral
30. • Which of the following pairs of coordination
compounds or complex ions are examples of
linkage isomers?
a. [Cu(NH3)5Br]Cl and [Cu(NH3)5Cl]Br
b. [Fe(NH3)2(H2O)4]Cl2and [Fe(NH3)4(H2O)2]Cl2
c. [Fe(CO)5NO2]2+ and [Fe(CO)5ONO]2+
d. [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)2(H2O)4]Br2
• c. [Fe(CO)5NO2]2+ and [Fe(CO)5ONO]2+
31. • Exchange of co-ordination group by a water
molecule in complex molecule results in
a) Ionisation isomerism
b) Ligand isomerism
c) Hydrate isomerism
d) Geometrical isomerism
• c) Hydrate isomerism
