Question 3(i)Identify the reactant and write the balanced equation for the following:Nitric acid reacts with compound Q to give a salt Ca(NO3)2, water and carbon dioxide.

Question

Accepted Answer

The compound 'Q' in this reaction is calcium carbonate or calcium bicarbonate.

When nitric acid reacts with calcium carbonate, it produces calcium nitrate, water and carbon dioxide.

CaCO₃ + 2HNO₃ ⟶ Ca(NO₃)₂ + H₂O + CO₂

OR

Ca(HCO₃)₂ + 2HNO₃ ⟶ Ca(NO₃)₂ + 2H₂O + CO₂

Solved 2025 Specimen Paper ICSE Class 10 Chemistry — Question 1

Question 3(i)