Question

give example of decomposition reaction which take place in the presence of electricity.​

Answer 1

Answer:

2H2O ----> 2H2 + O2

The decomposition of water into hydrogen and oxygen in the presence of electricity is an example of decomposition reaction carried out with the help of electricity.  This process is known as electrolysis.

Answer 2

(1.) Decomposition on heating

Calcium carbonate when heated gives quicklime (CaO) and carbon dioxide

$CaCO _{3 } →CaO + CO _{2}$

(2.) Decomposition by light

Silver chloride decomposes to silver and chlorine in presence of sunlight

$2AgCl→2Ag+Cl _{2}$

(3). Decomposition by electricity

Water on electrolysis gives hydrogen and oxygen

$2H_{2}</p><p>O→2H_{2} +O _{2}$.