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Q52 (NDA-I/2019) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Basic chemical principles Answer Verified

Which one of the following will NOT produce carbon dioxide on reacting with an aeous solution of hydrochloric acid?

Result
Your answer: —  Â·  Correct: B
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

  1. [2] Science , class X (NCERT 2025 ed.) > Chapter 1: Chemical Reactions and Equations > Figure 1.3 > p. 6
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