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AIEEE 2012 Solved Paper
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© examsnet.com
Question : 10
Total: 89
Very pure hydrogen
(
99.9
%
)
can be made by which of the following processes?
Reaction of methane with steam
Mixing natural hydrocarbons of high molecular weight
Electrolysis of water
Reaction of salt like hydrides with water
Validate
Solution:
Very pure hydrogen (
99.9
%
) can be prepared by the action of water on sodium hydride.
NaH
+
H
2
O
→
NaOH
+
H
2
(very pure Hydrogen)
By electrolysis of water we get
99.5
%
pure hydrogen.
2
H
2
O
Electrolysis
─
─
─
─
─
─
─
─
▶
2
H
2
+
O
2
© examsnet.com
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