CBSE Class 12 Chemistry 2019 Outside Delhi Set 3 Solved Paper

Question : 11

Total: 13

Give reasons for the following:
(a) Transition metals have high enthalpies of atomization.
(b) Manganese has lower melting point even though it has a higher number of unpaired electrons for bonding.
(c) Ce4+ is a strong oxidizing agent.

Solution:

(a) Because of strong interatomic interactions / Strong metallic bonding between atoms.
(b) Due to stable 3d5 configuration , interatomic interaction is poor between unpaired electrons.
(c) Because Ce is more stable in +3 oxidation state.

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