sblock Elements - Result Question 30

####40. The compound(s) formed upon combustion of sodium metal in excess air is (are)

(2007, 2M)

(a) Na2O2

(b) Na2O

(c) NaO2

(d) NaOH

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Solution:

  1. When sodium metal is burnt in excess of air, mainly sodium peroxide (Na2O2) with little sodium oxide (Na2O) are formed.


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