Coordination chemistry

Coordination compounds play a vital role in

• biological functions

• catalytic applications

• both a and b

• none of these

Cobalamine, an essential vitamin is a coordination compound of

• Al

• Fe

• Co

• CO

When two or more stable compounds in solution are mixed together and allowed to evaporate, in certain cases there is a possibility for the formation of

• coordination compounds

• mixed salt

• double salt

• both a and c

The central metal ion of K₄[Fe(CN)₆]

• Fe⁺

• Fe²⁺

• Fe3⁺

• Fe4⁺

The coordination entity of K₂[NiCl₄]

• NiCl₄

• K₂[NiCl₄

• [NiCl₄]^2-

• Ni²⁺

In the complex [Co(NH₃)₅Cl]Cl, the coordination number is

• 3

• 5

• 6

• 4

Which one is a cationic complex?

• K₃[Fe(CN)₆]

• Na₂[Ni(EDTA)]

• [Co(en)₂Cl₂]Cl

• K₃[Fe(CN)₅NO]

Pick out the odd one out.

• CN^-

• Cl^-

• SO₄^2-

• C₂O₄^2-

Which one is an anionic complex?

• K[Ag(CN)₂]

• [Ag(NH₃)₂]Cl

• [Ni(CO)₄]

• [Co(NH₃)₆]Cl₃

Which one is a neutral ligand?

• H₂O

• NH₃

• CO

• All of these