Gujarat BoardEnglish MediumSTD 8ScienceCombustion and Flame1 Mark
MCQ
What is combustion?
✓
An exothermic reaction.
B
An endothermic reaction.
C
A displacement reaction.
D
A reduction reaction.
✓
Answer
Correct option: A.
An exothermic reaction.
Combustion is burning of a substance in the presence of oxygen. During this process heat energy is released, it is therefore an oxidation and exothermic reaction.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.