alleryStart learning →In a chemical reaction, the gain of oxygen by a substance is called
Aoxidation
Breduction
Cneutralisation
Dprecipitation
Answer & Solution
Correct answer: A. oxidation
1. Gain of oxygen (or loss of hydrogen) is **oxidation**.
2. Loss of oxygen (or gain of hydrogen) is reduction.
3. e.g. 2Cu + O₂ → 2CuO, copper is oxidised.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch1 'Chemical Reactions and Equations', §1.3_
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