Chemistry
Grade-10
Easy
Question
Na+ O2 
_______
- NaO
- NaO3
- Na3O
- Na2O
Hint:
Na2O
The correct answer is: Na2O
Since, sodium is a very reactive metal it tends to react with oxygen to form sodium oxide but this is an unstable compound. When burning sodium in oxygen we get sodium oxide or Sodium Peroxide.
4Na + O2 ---> 2Na2O
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