Combustion and Flame-Types of Combustion [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 3 of 3
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Question 1
Question MCQ▾
Combustion is caused by the rapid union of oxygen with hydrogen or carbon in the oil or coal is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Spontaneous combustion | |
b. | Rapid explosion | |
c. | Explosion | |
d. | None of the above |
Question 2
Question MCQ▾
Combustion occurs rapidly is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Explosion | |
b. | Rapid combustion | |
c. | Spontaneous combustion | |
d. | All of the above |
Question 3
Question MCQ▾
Phosphorescence is an example of:
Choices
Choice (4) | Response | |
---|---|---|
a. | Rapid combustion | |
b. | Explosion | |
c. | Spontaneous combustion | |
d. | Question does not provide sufficient data or is vague |