AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
In combustion of ethanol, oxygen is added to it, converting it into carbon dioxide and water. Addition of oxygen to a substance is defined as oxidation.
The examiner expects you to link the definition of oxidation (addition of oxygen) directly to what happens during combustion. One crisp sentence stating that ethanol gains oxygen to form CO₂ and H₂O is sufficient for 1 mark. Avoid writing the full balanced equation unless asked.