Mutual exchange of elements or radicals by two substances is known as
Decomposition
Combination
Displacement
Double decomposition
The type of chemical change in CuCO3 → CuO + CO2 is
Decomposition of calcium carbonate liberates
O2
N2
CO
CO2
Reaction of silver nitrate with sodium chloride to give silver chloride and sodium nitrate is an example for
Displacement reaction
Reaction of Zinc on Copper sulphate is an example for
When Zinc reacts with H2SO4, the gas liberated is
Sulphur
Hydrogen
Oxygen
Nitrogen
Barium chloride react with Sodium sulphate a white precipitate formed is
Barium sulphate
Sodium chloride
Sodium oxide
Barium hydride
When lead nitrate is heated, a reddish brown gas evolved is
Nitrogen dioxide
Nitrogen oxide
Bromine
Nitrous oxide
On burning Sulphur with oxygen, Sulphur dioxide is formed, It is an example for
When a single substance split into 2 or more substances, the reaction is called
Chemical displacement
Chemical combination
Chemical decomposition
