Classify the following reactions into different types:

(i) Classify the following reactions into different types:

(ii) Which of the above reaction(s) is/are precipitation reaction(s)? Why is it so called?

(i) (a) Double displacement reaction and precipitation reaction
(b) Combination reaction
© Thermal decomposition reaction
(ii) Reaction (a) is a precipitation reaction too, as a white precipitate (insoluble product) of silver chloride (AgCl) is formed in the reaction. Due to the formation of precipitate (a solid mass), this reaction is also called precipitation reaction.