Chapter 8: Coordination Compound
Important Questions
1. When a coordination compound CoCl3.6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write
(i) Structural formula of the complex
(ii) IUPAC name of the complex
2. Using IUPAC norms write the formulae for the following:
(a) Potassium trioxalatoaluminate(III)
(b) Dichloridobis–(ethane-1,2-diamine) cobalt(III)
3. Explain the following terms giving a suitable example in each case:
(i) Ambident ligand
(ii) Denticity of a ligand
(iii) Crystal field splitting in an octahedral Field
4. Give the formula of each of the following coordination entities:
(i) Co3+ ion is bound to one Cl–, one NH3 molecule and two bidentate ethylene diamine (en) molecules.
(ii) Ni2+ ion is bound to two water molecules and two oxalate ions.
Write the name and magnetic behavior of each of the above coordination entities.
(At. Nos. Co = 27, Ni = 28)
5. For the complex [NiCl4]–2, write
(i) The IUPAC name
(ii) The hybridization type
(iii) The shape of the complex (Atomic no. of Ni = 28)
