Question

we use slaked lime to whitewash ?why?

Answer 1

Answer:

Whitewash, or calcimine, kalsomine, calsomine, or lime paint is a type of paint made from slaked lime (calcium hydroxide, Ca(OH)2) or chalk calcium carbonate, (CaCO3), sometimes known as "whiting". Various other additives are sometimes used.

Answer 2

we used slaked lime to whitewash because when we applied it to the wall it reacts slowly with the co2 gas present in air to form a thin and shining layer of caco3 on the walls of the house