alleryStart learning →The decomposition of water into hydrogen and oxygen on passing electric current is called
Aelectrolytic decomposition
Bthermal decomposition
Cphotolytic decomposition
Da combination reaction
Answer & Solution
Correct answer: A. electrolytic decomposition
1. Electric current can break a compound into elements.
2. Water decomposing to H₂ and O₂ on electrolysis is **electrolytic decomposition**.
3. Hydrogen collects at the cathode and oxygen at the anode, in a 2:1 volume ratio.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch1 'Chemical Reactions and Equations', §1.2_
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