MCQ
Harish performed two different experiments $I$ and $II$. In experiment $I$, he provides a substance $'X$? with some heat. He found out that a sudden reaction takes place to form heat, light, and sound. In experiment $II$, he provides heat to a substance $'Y$?. He found out that when $Y$ bums, only heat and light are produced. Experiment $I$ represents an example of __$i$__, and experiment II represents an example of __$ii$___. The information in which alternative completes the given statement?
- ✓$i$-Explosion, $ii$-Rapid combustion.
- B$i$-Explosion, $ii$-Sportaneous combustion.
- C$i$-Spontaneous combustion,$ii$-Explosion.
- D$i$-Rapid combustion, $ii$-Spontaneous combustion.