Chapter 21, Problem 27PS

Interpretation Introduction

Interpretation: The uses of limestone and the balanced reaction equation for the reaction of limestone  with ${\text{CO}}_{\text{2}}$ has to be stated.

Concept introduction:

Limestone is a rock composed of calcium carbonate $\left({\text{CaCO}}_{\text{3}}\right)$. It is a sedimentary rock and is found on the surface of the earth and is readily soluble in acids and water. Limestone can be of different shapes and sizes. It has enormous uses, especially in agriculture.

Limestone reacts with water in presence of ${\text{CO}}_{\text{2}}$ to form calcium bicarbonate.