Advertisements
Advertisements
Question
Define the following:
Combustion.
Solution
Combustion: Combustion also called burning “is burning of substance in the oxygen of air completely producing heat and light is called combustion.”
APPEARS IN
RELATED QUESTIONS
Answer the question put against the following constituents of air :
Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.
Statement given below is incorrect. Write the correct statement :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
Tick (√) the most appropriate answer.
The humans pollute the air by :
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
Why is carbon-dioxide gas used to extinguish fire?
Write the percentage of the gases present in air.
______ gas cylinders are used for breathing purpose for a diver going deep into the sea.
The composition of air changes slightly from place to place. Give examples.
The air in coastal areas have more oxygen.
Tri oxygen molecule is known as ______.