CBSE Class 12 Chemistry 2019 Outside Delhi Set 3 Solved Paper

Question : 6 of 13

Marks: +1, -0

Define the following terms with a suitable example of each:
(a) Polydentate ligand
(b) Homoleptic complex
OR
Using IUPAC norms, write the formulae for the following complexes:
(a) Potassium tri(oxalate)chromate(III)
(b) Hexaaquamanganese(II) sulphate

Solution:

(a) A ligand having several donor atoms. Example: EDTA
(b) A complex in which a metal is bound to only one kind of donor groups / ligands.Example

[ {\Co} ( {\NH}_3) _6] ^{3+}

OR
(a)

{\K}_3 [ {\Cr} ( {\C}_2 {\O}_4) _3]

(b)

[ {\Mn} ( {\H}_2 {\O}) _6] {\SO}_4

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