Dr. J M D'Souza and Dr. Kirti J D'Souza Solutions for Chapter: Combustion and Flame, Exercise 4: HIGHER ORDER THINKING SKILLS

Author:Dr. J M D'Souza & Dr. Kirti J D'Souza

Dr. J M D'Souza Science Solutions for Exercise - Dr. J M D'Souza and Dr. Kirti J D'Souza Solutions for Chapter: Combustion and Flame, Exercise 4: HIGHER ORDER THINKING SKILLS

Attempt the free practice questions on Chapter 6: Combustion and Flame, Exercise 4: HIGHER ORDER THINKING SKILLS with hints and solutions to strengthen your understanding. EUREKA PLUS Revised Bringing Science to Life solutions are prepared by Experienced Embibe Experts.

Questions from Dr. J M D'Souza and Dr. Kirti J D'Souza Solutions for Chapter: Combustion and Flame, Exercise 4: HIGHER ORDER THINKING SKILLS with Hints & Solutions

MEDIUM
8th CBSE
IMPORTANT

In summer, white phosphorous begins to burn on its own. Give reasons?

MEDIUM
8th CBSE
IMPORTANT

Give reasons why a match stick can be lit by striking it on a rough surface of a floor?

HARD
8th CBSE
IMPORTANT

Give reason: Dry wood is an essential fuel for camp fire.

MEDIUM
8th CBSE
IMPORTANT

Give reason: Ideal fuel cannot have very low ignition temperature. 

HARD
8th CBSE
IMPORTANT

Give reason: In a burning candle, the wax below the flame melts but does not catch fire. 

HARD
8th CBSE
IMPORTANT

Give reason: Combustion of petrol produces heat. 

HARD
8th CBSE
IMPORTANT

Give reason: It is difficult to burn wet cloth.

HARD
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>HIGHER ORDER THINKING SKILLS>Explain why wood can be considered to be an ideal fuel for cooking in a remote village on a mountain

Explain why wood can be considered to be an ideal fuel for cooking in a remote village on a mountain.