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Subjects
Science State Board
Class 8
Water
Textbook questions
12.
Answer in brief I
Exercise condition:
5
m.
Name the gas evolved at cathode and anode when water is electrolysed. State their ratio by volume.
The gas evolved at cathode is
nitrogen
oxygen
carbon dioxide
hydrogen
.
The gas evolved at anode is
hydrogen
oxygen
carbon dioxide
nitrogen
.
The ratio of
nitrogen
oxygen
carbon dioxide
hydrogen
and
hydrogen
oxygen
carbon dioxide
nitrogen
\(=\)
\(2 : 2\)
\(1 : 1\)
\(2 : 1\)
\(1 : 2\)
.
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