sblock Elements - Result Question 30
####40. The compound(s) formed upon combustion of sodium metal in excess air is (are)
(2007, 2M)
(a) $Na _2 O _2$
(b) $Na _2 O$
(c) $NaO _2$
(d) $NaOH$
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Solution:
- When sodium metal is burnt in excess of air, mainly sodium peroxide $\left(Na _2 O _2\right)$ with little sodium oxide $\left(Na _2 O\right)$ are formed.
