TRB Q & A for coordination compounds.pptx

This ppt helps to study and recall the subject of Coordination Chemistry.

1. By Dr. G. Balakrishnan Assistant Professor Department of Chemistry Vivekananda College Coordination Compounds TRB QUESTIONS & ANSWERS

2. 1. IUPAC name of K 4 [FeCl 2 (CN) 4 ] is (a) Tetrapotassium dichlorocyano iron (II) (b) Potassium dichlorotetracyano ferrate (II) (c) Potassium dichlorotetracyano ferrate (III) (d) Potassium tetracyanodichloro ferrate (II) (TRB 2001)

3. Answer: ( b) Potassium dichlorotetracyano ferrate (II) 1. IUPAC name of K 4 [FeCl 2 (CN) 4 ] is (a) Tetrapotassium dichlorocyano iron (II) (b) Potassium dichlorotetracyano ferrate (II) (c) Potassium dichlorotetracyano ferrate (III) (d) Potassium tetracyanodichloro ferrate (II) (TRB PGA 2001)

4. 2. Which of the following statements is incorrect with regard to co-ordination compounds? ( a) The secondary valency corresponds to the co-ordination number of the central metal atom (b) The secondary valencies are satisfied by ligands (c) The ligands are Lewis bases (d) The secondary valency corresponds to the oxidation state of the central metal atom (TRB PGA 2001)

5. 2. Which of the following statements is incorrect with regard to co-ordination compounds? ( a) The secondary valency corresponds to the co-ordination number of the central metal atom (b) The secondary valencies are satisfied by ligands (c) The ligands are Lewis bases (d) The secondary valency corresponds to the oxidation state of the central metal atom Answer: ( d) The secondary valency corresponds to the oxidation state of the central metal atom (TRB School Assistant 2001)

6. 3. Which is not a neutral ligand? (a) Cyano (b) Aqua (c) Amine (d) Carbonyl Answer: ( a) Cyano (TRB School Assistant 2001)

7. 4. In [Ag(NH 3 ) 2 ] + the co-ordination number of silver is (a) 2 (b) 3 (c) 5 (d) Zero Answer: ( a) 2 (TRB School Assistant 2001)

8. 5. IUPAC name of [Cr(H 2 O) 4 Cl 2 ] Cl is (a) tetraaquodichloro chromium(III) chlioride (b) Chromium tetraaquodichloro chromium chloride (c) chromium aquochloro (III) chloride (d) dichloro tetraaquochromium (III) chloride (TRB School Assistant 2001)

9. 5. IUPAC name of [Cr(H 2 O) 4 Cl 2 ] Cl is (a) tetraaquodichloro chromium(III) chlioride (b) Chromium tetraaquodichloro chromium chloride (c) chromium aquochloro (III) chloride (d) dichloro tetraaquochromium (III) chloride Answer: (a) tetraaquodichloro chromium(III) chlioride (TRB School Assistant 2001)