Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Pick out the correct statements from the following :
1. Cobalt (III) is more stable in octahedral complexes.
2. Zinc forms coloured ions or complexes
3. Most of the d-block elements and their compounds are ferromagnetic
4. Osmium shows (VIII) oxidation state
5. Cobalt (II) is more stable in octahedral complexes.
Text Solution
Verified by ExpertsThe correct answer is:
D
In Co +3 ion, electronic configuration |Ar| 18 3d 6 4s 0 . For octahedral complex 4 unpaired electron get paired and in configuration become t 2g 6 eg 0 and hybridization d 2 sp 3 .Os has maximam VIII oxidation state.
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