Oxygen
Oxygen: Overview
This Topic covers sub-topics such as Combustion, Decomposition Reactions, Uses of Oxygen, Production of Oxygen, Decomposition of Potassium Permanganate, Discovery of Oxygen by Joseph Priestley, Occurrence of Oxygen and, Necessity of Oxygen for Burning
Important Questions on Oxygen
Production of oxygen from potassium permanganate is an example of _____ reaction.

A gas obtained during the thermal decomposition of potassium permanganate is _____.

Write the chemical equation for the decomposition of potassium permanganate.




_____ is the process of burning of substances in the air with the evolution of heat and light.

Which of the following substance is non-combustible in nature?



A substance breaks into two simple small molecules then the reaction is called-

Give one example of each of the following:
A gas needed for burning


Fuel, air and _____ temperature are necessary required for the combustion.


What are the various required conditions of the combustion?



A burning candle gets extinguished after time if an inverted tumbler is put over it. Why?

Choose the appropriate word for the picture given below.
