Name the type of Chemical Reaction represented
(a) CaO + H₂O ---> Ca(OH)₂
(b) 3BaCl₂ + Al₂(SO₄)₃ ----> 3BaSO₄ + 2AlCl₃
(c) 2FeSO₄ ^heat _----> Fe₂O₃ + SO₂ + SO₃

Dear student,

The type of chemical reaction represented are- 
(a) CaO + H₂O ---> Ca(OH)₂
This is a combination reaction where calcium oxide combines with water to form calcium hydroxide.

​​​​​​(b) 3BaCl₂ + Al₂(SO₄)₃ ----> 3BaSO₄ + 2AlCl₃
This is a double displacement reaction, in this reaction barium ion displaces aluminium ion from its salt and aluminium ion displaces barium ion from its salt.

(c) 2FeSO₄$\stackrel{∆}{\to }$ Fe₂O₃ + SO₂ + SO₃
This is an example of a decomposition reaction where FeSO₄ decomposes to give Fe₂O_3, SO₂ and SO₃.

Regards