Question

write one example for each of the decomposition reaction carried out with the help of (i) Electricity (ii) Heat (iii) Light

Answer 1

Electricity

H2O—-> H2+O2

Heat

FeSO4—> Fe2O3+SO2+SO3

Light

AgCl—-> Ag+Cl2

Hope it helps:)

Answer 2

ANSWER:

Decomposition is a chemical reaction, In which the single compound breaks into plenty of compounds or an element.

EXPLANATION:

Thermal decomposition: The process of decomposition of a single substance into more than one substance by heat is called thermal decomposition.  

Example:

$\frac{2 F e(O H)_{3}}{F E R R I C \text { HYDROXIDE}} \overrightarrow{\text { Heat }} F e_{2} O_{3}+3 H_{2} O$

Electrolytic decomposition: The decomposition by electric current is called electrolytic decomposition process.

Example: $2 \text { Nacl electricity } 2 \mathrm{Na}+\mathrm{Cl}_{2}$

Photo decomposition: The decomposition by light is called Photo decomposition process.

Example: $2 A g C l \rightarrow 2 A g+C l_{2}$