NCERT Exemplar Solutions
Class 10 - Science - CHAPTER 2: Acids, Bases and Salts - Short Answer Questions
Question 35

Question. 35

35. What happens when nitric acid is added to egg shell?

Answer:

Egg shells (CaCO₃) react with HNO₃ to give calcium nitrate, water and carbon dioxide: \(\mathrm{CaCO_3 + 2HNO_3 \to Ca(NO_3)_2 + H_2O + CO_2}\).

Detailed Answer with Explanation:

Steps: Egg shell contains calcium carbonate. Acid reacts producing CO₂ gas (bubbling), soluble nitrate and water.

NCERT Exemplar Solutions Class 10 – Science – CHAPTER 2: Acids, Bases and Salts – Short Answer Questions | Detailed Answers