Write one equation each for decomposition reactions in which energy is supplied in the form of heat, light or electricity.

Asked by Shivani Kumari | 1 year ago |  191

##### Solution :-

(a) Thermal decomposition reaction (Thermolysis) Decomposition of potassium chlorate: When heated strongly, potassium chlorate decomposes into potassium chloride and oxygen. This reaction is used for the preparation of oxygen.

2KClO3 + Heat → 2KCl + 3O2

(b) Electrolytic decomposition reaction (Electrolysis) Decomposition of sodium chloride: On passing electricity through molten sodium chloride, it decomposes into sodium and chlorine

$$2NaCl \overset{electricity}{\to}2Na+Cl_2$$

(c) Photodecomposition reaction (Photolysis) Decomposition of hydrogen peroxide: In the presence of light, hydrogen peroxide decomposes into water and oxygen.

$$2H_2O_2\overset{light}{\to}2H_2O$$

Answered by Vishal kumar | 1 year ago

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