MEDIUM
8th CBSE
IMPORTANT
Earn 100

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

Important Questions on Combustion and Flame

HARD
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>HIGHER ORDER THINKING SKILLS>Q 5
Give reason: In a burning candle, the wax below the flame melts but does not catch fire. 
HARD
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>HIGHER ORDER THINKING SKILLS>Q 6
Give reason: Combustion of petrol produces heat. 
HARD
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>HIGHER ORDER THINKING SKILLS>Q 7
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.