Q: Write the chemical equation that is the cause of the shiny white color of walls after whitewashing.

Write the chemical equation that is the cause of the shiny white color of walls after whitewashing.

Flexi Says: Calcium hydroxide, or slaked lime, is used for whitewashing walls and gives a shiny white color after two to three days. This is due to the reaction of calcium hydroxide with carbon dioxide present in the air to produce white-colored calcium carbonate. Ca(OH)₂(aq)+CO₂(g)→CaCO₃(s)+H₂O(l)