Question

Give one example each of thermal decomposition and electrolytic decomposition

Answer 1

• Thermal decomposition - Those decomposition reaction which are carried out by using heat energy are known as thermal decomposition reaction .

        Eg  - when calcium carbonate is strongly heated in the absence of air , it breaks down to give calcium oxide and carbon dioxide.

• Electrolytic decomposition - Those decomposition reaction which are carried out by passing electrical current are known as electrolytic decomposition reaction  

         Eg  - On passing current water breaks down to give hydrogen and oxygen . We add a drop of concentrated sulphuric acid to increase the electrical conductivity of water during the reaction.

 Hope this answer might satisfy you !

Answer 2

Answer:

Thermal decomposition reaction :-

• CaCo3 ------> Cao + CO2

Electrolytic decomposition reaction :-

• 2H2O ------> 2H2 + O2