COORDINATION

The oxidation number of cobalt in K[Co(CO)₄] is

(a) +1             (b) +3              (c) –1             (d) –3

• A

• B

• C

• D

How many ions are produced from the complex [Co(NH₃)₆]Cl₂ in solution? 

(a) 4           (b) 3               (c) 2              (d) 1

• A

• B

• C

• D

Which among the following is an example of double salt?

(a) Potassium ferrocyanide        (b) Potassium ferricyanide

(c) Ferrous ammonium sulphate  (d) Dimethyl glyoxime

• A

• B

• C

• D

NO₂ is a:

(a) Monodentate ligand             (b) Tridentate ligand

(c) Hexadentate ligand              (d) Ambidentate ligand

• A

• B

• C

• D

The oxidation state of Fe in [Fe(CN)₆]^-3 is:

(a) +2             (b) +3              (c) –1             (d) –3

• A

• B

• C

• D

The ligand N(CH₂CH₂NH₂)₃ is

(a) Monodentate ligand             (b) Tetradentate ligand

(c) Hexadentate ligand              (d) Ambidentate ligand

• A

• B

• C

• D

Which one of the following is a homoleptic complex?

(a) Tris(ethane-1,2-diamine)cobalt (III) chloride

(b) triamminetriaquachromium (III) chloride

(c) diamminechloridonitro-N-platinum (II)

(d) pentaamminecarbonatocobalt (III) chloride

• A

• B

• C

• D

Complex, K₄[Fe(CN)₆], give the test of:

(a) K ion            (b) Fe ion                 (c) CN ion          (d) All

• A

• B

• C

• D