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Which of the following oxides is formed ...

Which of the following oxides is formed when potassium metal is burnt in excess air ?

A

`K_(2)O`

B

KO

C

`KO_(2)`

D

`K_(2)O_(2)`.

Text Solution

Verified by Experts

The correct Answer is:
C
Formation of oxides, peroxides and superoxides depend on the size of alkali metal. An atom with larger size produces super oxide. Li forms oxide, Na forms peroxide whereas K forms superoxide.
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