Question

The shiny finish of wall after white wash is because of.
a) Calcium oxide b) Calcium hydroxide
c) Calcium Carbonate d) Calcium phosphate​

Answer 1

Answer:

solution of slaked lime (Ca(OH)2) is used to white wash the walls. Calcium hydroxide reacts with the carbon dioxide in air to form thin layer of calcium carbonate on the walls. It gives a shiny finish to the walls.