Give an example of each of the following chemical changes :
a.a photochemical reaction reaction involving
i.silver salt
ii.water

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Solution

Dear Student,

The reactions that take place in the presence of sunlight are called Photochemical reactions.

1. Silver salt;
2AgCl --> 2Ag + Cl2
2AgBr --> 2Ag + Br2

2. Water;
In Photosynthesis, the photolysis of water involves the splitting of water in the presence of sunlight. Here is the reaction:
2H2O --> 2H2 + O2

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Similar questions

Give an example of each of the following chemical changes.

(a) A reaction involving.

(i) Change of state.

(ii) Formation of the precipitate.

(b) An exothermic and an endothermic reaction involving carbon as one of the reactants.

Explain giving one example for each of the following chemical changes :

(a) Double decomposition

(b) Thermal dissociation

(d) Displacement reaction

Define:

(a) Photochemical reaction

(b) Electrochemical reaction.

Give one example in each case.

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