At which electrode is the gas with lower volume formed during electrolysis of water?
Answer and explanation
Correct answer: Anode
During electrolysis of water, hydrogen is produced at the cathode and oxygen at the anode. Their volume ratio is hydrogen : oxygen = 2 : 1, so oxygen is the gas formed in the lower volume, at the anode. The cathode produces the larger volume of hydrogen. Exam tip: Remember: H₂ at the cathode and O₂ at the anode during electrolysis of water.
Frequently asked questions
What is the correct answer to this question?
Anode
Why is this the correct answer?
During electrolysis of water, hydrogen is produced at the cathode and oxygen at the anode. Their volume ratio is hydrogen : oxygen = 2 : 1, so oxygen is the gas formed in the lower volume, at the anode. The cathode produces the larger volume of hydrogen. Exam tip: Remember: H₂ at the cathode and O₂ at the anode during electrolysis of water.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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