Question

what from of energy is causing these decomposition reaction (a) 2feso4----> fe2 o3 + so2 +. so3. (b) electrolysis of water (c) 2ag bg ---> 2ag+br2

Answer 1

Answers are as follows :
a. Heat is here provided to 2FeSO4 to form ferric oxide, sulphur oxide and sulphur tri-oxide. Hence, it's an example of thermal decomposition reaction.

b. Electrolysis of water is done with the help of electricity, where electricity is allowed to pass through respective cathode and anode to have Hydrogen and oxygen as product. Hence, it's an example of electrolytic decomposition reaction.

c. 2AgBr is broken down into Ag and Br here by the help of sunlight, hence it's also an example of Photo chemical decomposition reaction.