Question

Examples of thermal decomposition reactions are:

1. \[\ce{2AgCl->2Ag + Cl2}\]
2. \[\ce{CaCO3->CaO + CO2}\]
3. \[\ce{2H2O->2H2 + O2}\]
4. \[\ce{2KClO3->2KCl + 3O2}\]

Options

• (i) and (ii)

• (ii) and (iii)

• (iii) and (iv)

• (ii) and (iv)

Answer 1

(ii) and (iv)

• \[\ce{CaCO3->CaO + CO2}\]
• \[\ce{2KClO3->2KCl + 3O2}\]