Transition metals

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Question 1 of 47

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Ligands are classified by the number of co-ordinate bonds each ligand forms with the metal ion. Water and ammonia are monodentate; ethane-1,2-diamine (H₂NCH₂CH₂NH₂) is bidentate; EDTA^4- is multidentate.

(a)[2]
Explain the terms monodentate and bidentate ligand.
(b)[1]
EDTA^4- forms a complex with one metal ion using six co-ordinate bonds. Deduce the co-ordination number of the metal ion in this complex.
(c)[1]
State the co-ordination number of the nickel ion in the complex [Ni(H₂NCH₂CH₂NH₂)₃]²⁺.