1.

Pick out the correct statements from the following : 1. Cobalt (III) is more stable in octahedralcomplexes. 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 stablein otahedral complexes.

Answer»

1 and2
1 and 3
2 and 4
1 and 4

Solution :Cobalt (III) is MUCH stable in OCTAHEDRAL compelxesand ALSO osmium shows (VIII) OXIDATION state.


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