Question

What is oxidation state of Co in this?​

Answer 1

Answer:

The most common oxidation states of cobalt are +2 and +3. [Co(H2O)6]2+ and [Co(H2O)6]3+ are both known but the latter is a strong oxidizing agent and in aqueous solution, unless it is acidic, it decomposes rapidly as the CoIII oxidizes the water with evolution of oxygen.

Answer 2

Answer:

atomic number 27

boiling point 2,870 °C (5,198 °F)

density 8.9 gram/cm3 at 20 °C (68 °F)

oxidation states +2, +3

electron configuration [Ar]3d74s2

Explanation:

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