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

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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

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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

Edit