Q. The compound(s) formed upon combustion of sodium metal in excess air is (are)
(A) $\mathrm{Na}_{2} \mathrm{O}_{2}$
(B) $\mathrm{Na}_{2} \mathrm{O}$
(C) $\mathrm{NaO}_{2}$
(D) $\mathrm{NaOH}$
[JEE 2009]
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Sol. (A,B) Sodium does not form peroxide on reaction with excess air.
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