Question

Write three decomposition reaction in presence of heat, sunlight, electricity ?​

Answer 1

Answer:

Decomposition reaction requiring heat is known as thermal decomposition , CaCO3--------->CaO + CO2. Decomposition reaction requiring light is known as photo chemical decomposition reaction , 2AgCl-------2Ag + Cl2.

1) silver chloride decomposes into silver and chlorine . 2) hydrogen peroxide decomposes into water and oxygen. ex- due to electricity. 1)water decomposes into hydrogen and oxygen.

Explanation:

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into 2 or more elements or new compounds. 1) calcium carbonate decomposes in calcium oxide & carbon dioxide when heated. 2)When heated strongly potassium chlorate decomposes into potassium chlorite and oxygen.