Question 21(b)Write balanced chemical equation for the reaction that occurs when :(i) blue coloured copper sulphate crystals are heated and(ii) Sodium hydrogen carbonate is heated during cooking.

Question

Accepted Answer

(i) When blue coloured copper sulphate crystals are heated :

CuSO₄.5H₂O $\xrightarrow{\Delta}$ CuSO₄ + 5H₂O

(ii) When sodium hydrogen carbonate is heated during cooking

2NaHCO₃ $\xrightarrow{\Delta}$ Na₂CO₃ (s) + H₂O (l) + CO₂ (↑)

Solved 2023 Question Paper CBSE Class 10 Science — Question 2

Question 21(b)