Question

explain photolytic decomposition with the help of given equation 2AgCl ------> 2Ag + Cl2​

Answer 1

Explanation:

Silver halides especially Silver chloride and Silver bromide undergo decomposition in presence of sunlight to produce silver metal and a halogen gas (chlorine or bromine gas).

The reactions are as follows:

2AgCl (sunlight)→2Ag+Cl

2

2AgBr (sunlight)→2Ag+Br

2

Answer 2

Explanation:

Photochemical reactions are those which occur in the presence of light.

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds upon absorption of energy in the form of heat, light, or electricity that breaks apart the bonds of compounds.

A combination reaction is a type of chemical reaction in which two or more elements or molecules combine/ form chemical bonds to yield single compound. Bond formation is assisted by the release of energy.

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example: Reaction of iron nails with copper sulphate solution.

Reaction given:

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

uses light for breaking bond and forms new molecules. its an example of photochemical decomposition reaction.