JEE (Based on NTA Guidelines-IIT Engg.) Mains Chemistry Coaching Programs
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NCERT Class VIII Science Solutions: Chapter 6 - Combustion and Flame Part 1
Question 1:
List conditions under which combustion can take place.
Answer:
Conditions under which combustion can take place are as follows:
- Fuel is required
- Air (oxygen) is necessary.
- Ignition temperature is required.
Question 2:
Fill in the blanks:
- Burning of wood and coal causes ________ of air.
- A liquid fuel, used in homes is ________.
- Fuel must be heated to its ________ ________ before it starts burning.
- Fire produced by oil cannot be controlled by ________.
Answer:
- Burning of wood and coal causes pollution of air.
- A liquid fuel, used in homes is Liquefied Petroleum Gas (LPG) .
- Fuel must be heated to its Ignition temperature before it starts burning.
- Fire produced by oil cannot be controlled by water.