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- Help me answer: The main oxides formed on combustion of Li, Na and K in excess of air are, respectively :
- #Chemistry
- #Joint Entrance Examination Main
- #Engineering
- #S - Block Elements (Alkali and Alkaline Earth Metals)
The main oxides formed on combustion of Li, Na and K in excess of air are, respectively :
- Option 1)
Li2O, Na2O and KO2
- Option 2)
LiO2, Na2O2 and K2O
- Option 3)
Li2O2, Na2O2 and KO2
- Option 4)
Li2O, Na2O2 and KO2
Answers (1)
As we learnt in
Action of oxygen on alkali metals -
Nature of oxides formed depends upon the nature of alkali metal
- wherein
Option 1)
Li2O, Na2O and KO2
This option is incorrect.
Option 2)
LiO2, Na2O2 and K2O
This option is incorrect.
Option 3)
Li2O2, Na2O2 and KO2
This option is incorrect.
Option 4)
Li2O, Na2O2 and KO2
This option is correct.
View full answer
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