What is the chemical formula of lime water?

Question:- What is the chemical formula of lime water?

Answer: Lime water is known chemically as calcium hydroxide that has the chemical formula Ca(OH)₂. Calcium hydroxide is a pale or colorless liquid prepared by dissolving solid calcium hydroxide in water. On dissolving, it gives calcium ions (Ca²⁺) and hydroxide ions (OH⁻) and the solution is strongly alkaline typically having a pH of 12. 4. Lime water is commonly used in several ways; it can be used to softening water and for purification purposes, in food industries as a seasoning, and used in laboratories as a reagent. Its most distinguished characteristic is its dual-sparing reactivity with carbon dioxide by precipitating it as calcium carbonate. This reaction makes lime water to act as an ideal indicator for CO₂ and is widely used in basic chemical experiments to display production of carbon dioxide or checking the quality of air. However, the term lime water has nothing to do with the citric fruit lime as one might presuppose.