ICSE Class 10 Chemistry Question 15 of 22

Solved 2024 Question Paper ICSE Class 10 Chemistry — Question 12

Back to all questions
12
Question

Question 5(iv)

Identify the gas evolved in each of the following reactions:

(a) Methane undergoes complete combustion.

(b) Copper carbonate is heated.

(c) MnO2 reacts with concentrated HCl.

Answer

(a) Carbon dioxide
CH4 + 2O2 ⟶ CO2 + 2H2O

(b) Carbon dioxide
CuCO3 ⟶ CuO + CO2

(c) Chlorine
MnO2 + 4HCl ⟶ MnCl2 + 2H2O + Cl2