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Why \mathrm{Co^{3+}} is releases \mathrm{O_{2}} in aqueous medium?

Option: 1

Because of its high oxidizing power in water.

 


Option: 2

Because it disproportionates.


Option: 3

Because of the unpaired electrons in d-orbital.

 


Option: 4

Because of its small size.


Answers (1)

best_answer

\mathrm{Co^{3+}} acts an oxidizing agent in water and releases \mathrm{Co^{2+} and \: O_{2}}

The reaction is : \mathrm{ 4 Co^{3+}(aq) + 2H_{2}O(l) \rightarrow 4 Co^{2+}(aq) + 4 H_{2}(aq) + O_{2}. }

Hence option 1 is correct.

Posted by

jitender.kumar

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