Magnesium is a non-combustible metal.

Important Questions on Combustion and Flame

EASY

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 3

Carbon dioxide is an excellent fire extinguisher.

EASY

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 4

Calorific value of wood is higher than that of coal.

EASY

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 5

A physical process in which a substance react with oxygen to give off heat is called combustion.

EASY

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 6

Water is the best extinguisher for fires involving electrical equipment.

EASY

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 7

Alcohol, CNG and LPG are inflammable substances.

MEDIUM

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 8

Greater the calorific value, better is the fuel.

EASY

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 9

Middle zone is the hottest zone of a flame.

EASY

8th CBSE

IMPORTANT

All in One - SCIENCE CBSE Class 8>Chapter 6 - Combustion and Flame>Chapter Practice>Q 10

The substance which vaporise during burning, give flame.