Question map
Which one of the following will NOT produce carbon dioxide on reacting with an aeous solution of hydrochloric acid?
Explanation
The reaction between metal carbonates and acids consistently produces a salt, water, and carbon dioxide gas [2]. Limestone, chalk, and marble are all different physical forms of calcium carbonate (CaCO3) [2]. Consequently, when any of these three substances react with an aqueous solution of hydrochloric acid (HCl), carbon dioxide is evolved as a byproduct [2]. In contrast, Quick Lime is calcium oxide (CaO) . Calcium oxide is a basic oxide that reacts with hydrochloric acid to form calcium chloride (a salt) and water, but it does not contain a carbonate group. Therefore, the reaction of Quick Lime with HCl is a neutralization reaction that does not produce carbon dioxide gas. This distinguishes it from the carbonate-based materials like limestone, chalk, and marble which all release CO2 upon acidification.
Sources
- [2] Science , class X (NCERT 2025 ed.) > Chapter 1: Chemical Reactions and Equations > Figure 1.3 > p. 6