Isomerism in Coordination Chemistry.pptx

Isomerism in Coordination Chemistry

1. S.Y.B.Sc . Inorganic and Organic Chemistry Ch.1 Isomerism in Co-ordination chemistry

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 [MX 2 L 2 ], 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(C 2 o 4 ) 3 ] 3- ? a) 0 b) 2 c) 3 d) 4 a) 0

9. A tetrahedral compound of type [MP 2 Q 2 ] has two geometrical isomers. a) True b) False b) False

10. How many geometrical isomers are possible in a complex of type [MA 2 (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 [MXL 3 ] b) Square planar [MX 2 L 2 ] c) Octahedral [MX 2 L 4 ] d) Octahedral [MX 3 L 3 ] a) Square planar [MXL 3 ]

13. In the coordination entity [Co(NH 3 ) 3 (NO 2 ) 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) 5 Br] + b) [Al(CO) 3 (NO 2 ) 3 ] c) [K(NH) 3 ) 4 (NO) 2 ] + d) [Fe(H 2 O) 2 (CO) 2 (NO) 2 ] 3 + b) [Al(CO) 3 (NO 2 ) 3 ]

15. Which of the following compounds has enantiomers ? a) K 3 [Fe(CN) 6 ] b) K 3 [Al(C 2 O 4 ) 3 ] c) K 2 [Zn(OH) 4 ] d) K 2 [PdCl 4 ] b) K 3 [Al(C 2 O 4 ) 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 [CrCl 2 (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(H 2 O) 5 (NO 2 )]Cl 2 c) [CoCl 2 (en) 2 ] Cl d) K[Cr(NH 3 ) 2 (ONO) 4 ] c) [CoCl 2 (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(NH 3 ) 2 ][Ag(CN) 2 ] b) [Cr(NH 3 ) 6 ][Co(CN) 6 ] c) [Zn(NH 3 ) 4 ][PtCl 4 ] d) [Cu(NH 3 ) 4 ][FeCl 4 ] a) [Ag(NH 3 ) 2 ][Ag(CN) 2 ]

23.  The compounds [Co(NH 3 ) 5 Cl]SO 4  and [Co(NH 3 ) 5 (SO 4 )] Cl are ________ isomers. a) linkage b) coordination c) ionisation d) solvate c) ionisation

24. The compound [Co(NH 3 ) 5 (NO 2 )](NO 3 ) 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 (NH 3 ) 2 Cl 2 ] b) [Co (NH 3 ) 5 NO 2 ] Cl 2 c) [Co (NH 3 ) 4 Cl 2 ] NO 2 d) [Ag (NH 3 ) 2 ] NO 2 b) [Co (NH 3 ) 5 NO 2 ] Cl 2

27. Which complex cannot ionize in solution? a. [Pt(NH 3 ) 6 ]Cl 4 b. K 2 [Pt(F 6 )] c. K 4 [Fe(CN) 6 ] d. [CoCl 3 (NH 3 ) 3 ] d. [CoCl 3 (NH 3 ) 3 ]

28. Which of the following square planar complex ions can have cis -trans isomers? a) [Pt(NH 3 ) 4 ] 2+ b) [Ni(NH 3 ) 4 ] 2+ c) [Pt(NH 3 ) 2 Cl 2 ] d) [Pt(NH 3 )Cl 3 ] − c) [Pt(NH 3 ) 2 Cl 2 ]

29. A complex with the composition [MA 2 B 2 ]X 2 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(NH 3 ) 5 Br] Cl and [Cu(NH 3 ) 5 Cl]Br b. [Fe(NH 3 ) 2 (H 2 O) 4 ]Cl 2 and [Fe(NH 3 ) 4 (H 2 O) 2 ]Cl 2 c. [Fe(CO) 5 NO 2 ] 2+ and [Fe(CO) 5 ONO] 2+ d. [Fe(NH 3 ) 2 (H 2 O) 4 ]Cl 2 and [Fe(NH 3 ) 2 (H 2 O) 4 ]Br 2 c. [Fe(CO) 5 NO 2 ] 2+ and [Fe(CO) 5 ONO] 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

32. Thank You…………