Question

= What is decompositon reaction and what are its types =

Answer 1

$\huge\boxed{Decomposition Reaction}$
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The breaking down of single compound into two or more simpler substances is called decomposition reaction. .
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◆Decomposition reaction has three parts...

1)$Thermal Decomposition :-$

【The single substance breaks down into two or more simpler substances upon heating.】

【CaCO3 (s) ------∆ed---
-->CaO(s)+ CO2 (g) 】

2) $Electric Decomposition :-$

【A single substance breaks down into two or more simpler substances upon passage of electric current.】

【2H2O (l) ------>2H2(g) + O2(g)】
(in presence of electricity )

3) $Photo Decomposition :-$

【A single substance breaks down into simpler substances in presence of Sunlight.】

【2Agcl (s) --------> 2Ag(s) + cl2 (g)】
( in presence of sunlight )
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Answer 2

Answer.......

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☆☆ DECOMPOSITION REACTION ☆☆
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▪▪ The Reaction in which a compound split into two or more simple substances is called DECOMPOSITION REACTION.
E.g. A ----> B + C

▪▪ Types of Decomposition Reaction : -

[ 1. ] Thermal Decomposition ----

When decomposition is carried out by heating.
E.g.

CaCO3 -----> CaO(s) + CO2(g)


[2.] Electrolytic Decomposition ----

When Decomposition is carried out by passing electric current.

e.g.

2H2O ---------> 2H + O2

[3. ] Photolytic Decomposition ------

When Decomposition is carried out in presence of Sunlight.

e.g.

2AgCl ---------> 2Ag + Cl2

** Above Reaction is used in black & white photography.

↪ Hope This Will Help You. ↩



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