The compounds formed upon combustion of sodium metal in excess of air is/are
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a
Na2O
b
Na2O2
c
NaO2
d
NaOH
answer is D.
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Detailed Solution
When the sodium metal is reacted with an excess amount of air or oxygen, it produces sodium peroxide. So we know it exists as sodium peroxide.4Na+O2→ 2Na2O +12O2→Na2O2