(i) CaC03CaO + CO2
(ii) CaO + H2OCa(OH)2
(iii) 2FeSO4Fe2O3 + SO2 + SO3
(iv) NH4CINH3 + HCl
(v) 2Ca + O22CaO
(ii) Combination Reaction.
(iii) Decomposition Reaction.
(iv) Decomposition Reaction.
(v) Combination Reaction.