Question

Decomposition reaction mainly take place in three conditions:-



in the presence of sunlight i.E. When silver chloride is put in sunlight, it decomposes into silver metal and chlorine gas.



in the presence of heat i.E. When lead nitrate is heated, it decomposes into lead oxide, nitrogen dioxide and oxygen.



by passing electricity

Answer 1

By passing electricity ⚡ the decomposition reaction is :

H2O--> H2+O2
Balancing the equation:

2H20+2H2+O2.