Decomposition of calcium carbonate liberates
O2
N2
CO
CO2
Calcium hydroxide is formed from
CaO
CaCO3
CaSO4
CaCl2
On heating lead nitrate, a pale yellow substance left is
Lead oxide
Lead sulphate
Lead hydride
Lead nitride
When lead nitrate is heated, a reddish brown gas evolved is
Nitrogen dioxide
Nitrogen oxide
Bromine
Nitrous oxide
Reaction of silver nitrate with sodium chloride to give silver chloride and sodium nitrate is an example for
Decomposition
Double decomposition
Combination
Displacement reaction
Nitrogen and hydrogen combines to form
Amide
Ammonia
Hydride
Oxide
The coolant used in nuclear reactor is
Tritium
Thorium
Uranium
Water
Mutual exchange of elements or radicals by two substances is known as
Displacement
Reaction of Zinc on Copper sulphate is an example for
Decomposition of PCl5 is
Reversible
Irreversible
Combustion
Reduction