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Tardigrade
Question
Chemistry
An element forms a solid oxide which when dissolved in water, forms an acidic solution. The element is
Q. An element forms a solid oxide which when dissolved in water, forms an acidic solution. The element is
1852
198
BHU
BHU 2009
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A
neon
B
sodium
C
phosphorus
D
sulphur
Solution:
Phosphorus pentoxide
(
P
2
O
5
)
is a white solid. It forms an acidic solution with water.
P
2
O
5
+
3
H
2
O
→
orthophosphoric acid
2
H
3
P
O
4