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Question
In electrolysis of water (acidified), the gases that are evolved at anode and cathode respectively are _________ and _______.
In electrolysis of water (acidified), the gases that are evolved at anode and cathode respectively are _________ and _______.
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Solution
The correct option is B Oxygen and hydrogen
In electrolysis of water (acidified), the gases that are evolved at anode and cathode respectively are oxygen and hydrogen. Hydrogen ions gain electrons from cathode and forms hydrogen gas,oxygen ions gives electrons to anode and forms oxygen gas.
The decompsition reaction of water is:
2H2O(l)→2H2(g)+O2(g)
Oxygen and hydrogen
In electrolysis of water (acidified), the gases that are evolved at anode and cathode respectively are oxygen and hydrogen. Hydrogen ions gain electrons from cathode and forms hydrogen gas,oxygen ions gives electrons to anode and forms oxygen gas.
The decompsition reaction of water is:
2H2O(l)→2H2(g)+O2(g)
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