The main oxides formed on combustion of ...

The main oxides formed on combustion of Li, Na and K in excess of air respectively are -

`LiO_2, Na_2O and KOH`

`LiO_2, Na_2O_2 and K_2O`

`Li_2O_2, Na_2O_2 and KO_2`

`Li_2O, Na_2O_2 and KO_2`

Text Solution

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The correct Answer is:

`4Li + O_2 to 2Li_2O, 2Na + O_2 to Na_2O_2`,
`K+ O_2 to KO_2`

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