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Question
Chemistry
The compound(s) formed upon combustion of sodium metal in excess air is (are)
Q. The compound(s) formed upon combustion of sodium metal in excess air is (are)
2755
239
IIT JEE
IIT JEE 2007
The s-Block Elements
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A
N
a
2
O
2
56%
B
N
a
2
O
29%
C
N
a
O
2
13%
D
N
a
O
H
3%
Solution:
When sodium metal is burnt in excess of air, mainly sodium peroxide
(
N
a
O
2
)
with little sodium oxide
(
N
a
2
O
)
are formed