Combustion and Flame-Types of Combustion (CBSE (Central Board of Secondary Education- Board Exam) Class-8 Science): Questions 1 - 3 of 3

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Question number: 1

» Combustion and Flame » Types of Combustion » Spontaneous Combustion

MCQ▾

Question

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.

Explosion

b.

Rapid explosion

c.

Spontaneous combustion

d.

None of the above

Question number: 2

» Combustion and Flame » Types of Combustion » Rapid Combustion

MCQ▾

Question

Combustion occurs rapidly is called as:

Choices

Choice (4) Response

a.

Spontaneous combustion

b.

Rapid combustion

c.

Explosion

d.

None of the above

Question number: 3

» Combustion and Flame » Types of Combustion » Spontaneous Combustion

MCQ▾

Question

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

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