MEDIUM
Earn 100

Write the chemical equation for the decomposition of potassium permanganate.

Important Questions on Non-metals

EASY
Science>Chemistry>Non-metals>Oxygen
The chemical reaction in which a fuel burns to release energy is called _____. (combustion/ decomposition)
EASY
Science>Chemistry>Non-metals>Oxygen
On being heated, baking soda undergoes _____ to give sodium carbonate, water and carbon dioxide.
EASY
Science>Chemistry>Non-metals>Oxygen
_____ gas supports the burning of fuels.
EASY
Science>Chemistry>Non-metals>Oxygen

A chemical process in which a substance reacts with oxygen to give off heat is called _____.

EASY
Science>Chemistry>Non-metals>Oxygen
Fuels release their energy through a chemical reaction known as _____.
MEDIUM
Science>Chemistry>Non-metals>Oxygen
The process of burning of a hydrocarbon in the presence of air to give CO2, H2O, heat and light is known as _____. (Decomposition/ combustion)
EASY
Science>Chemistry>Non-metals>Oxygen
Air consists of oxygen which supports _____.
EASY
Science>Chemistry>Non-metals>Oxygen
_____ is the gas required for combustion.
MEDIUM
Science>Chemistry>Non-metals>Oxygen
_____ reaction is accompanied by the evolution of heat.
MEDIUM
Science>Chemistry>Non-metals>Oxygen
_____ supports burning. (Oxygen/ Carbon dioxide)
EASY
Science>Chemistry>Non-metals>Oxygen
The gas essential for burning is ­_____.
EASY
Science>Chemistry>Non-metals>Oxygen
_____ supports burning. (oxygen/ carbon dioxide)
EASY
Science>Chemistry>Non-metals>Oxygen
Fuel, air and _____ temperature are necessary required for the combustion.
MEDIUM
Science>Chemistry>Non-metals>Oxygen
_____ (Oxygen/Nitrogen) is needed for burning.
EASY
Science>Chemistry>Non-metals>Oxygen

Fill in the blank with an appropriate word:

The gas that helps in burning is _____ (Oxygen/Carbon dioxide).

EASY
Science>Chemistry>Non-metals>Oxygen
Digestion of food is an example of _____ reaction.(decomposition/combination)
EASY
Science>Chemistry>Non-metals>Oxygen
_____ supports burning.(Chemical element)
MEDIUM
Science>Chemistry>Non-metals>Oxygen
_____ gas present in the air helps in burning.
EASY
Science>Chemistry>Non-metals>Oxygen
_____ gas is essential for burning. 
EASY
Science>Chemistry>Non-metals>Oxygen
Decomposition of AgBr takes place in presence of _____. (sunlight/ electricity)