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Class 8
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Study electrolysis of water
Study electrolysis of water
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1)
Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is
1:1
4:1
2:1
1:2
2)
The electrolyte in electrolysis is always in molten or liquid state.
True
False
3)
Example for a non-electrolyte
Sodium Chloride
Salt solution
Glucose
Acidified water
4)
The process of electrolysis is based on -------- laws of electrolysis
Fleming’s
Faraday’s
Ohm’s
Kelvin’s
5)
Water is decomposed into hydrogen and oxygen by means of an electric current by the method of
Electrolysis
Electric heating
None of these
Electroplating
6)
A weak electrolyte is one which
Is feebly ionised in the solution
Dissociates completely
Ionises completely
Is having high electrical conductivity
7)
An electrolyte is a
Liquid that conducts electricity
Sugar
Metal
Cell
8)
During electrolysis, the electrolyte conducts electricity by the movement of
Mobile cations and anions
Electrolyte particles
Solvent particles
Delocalized electrons
9)
Sodium chloride is a
Non-Electrolyte
Weak electrolyte
None of these
Strong electrolyte
10)
Pure / Distilled water is a good conductor of electricity
True
False