Question
Download Solution PDFThe chemical reaction : 2AgCl (s) → 2Ag (s) + Cl2 (g) takes place
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Photochemical Decomposition Reaction
- A photochemical decomposition reaction is a reaction in which a chemical compound is broken down by photons, i.e., it takes place in the presence of light.
- This type of reaction is also known as a photolysis reaction.
EXPLANATION:
- In the given reaction:
2AgCl (s) → 2Ag (s) + Cl2 (g)
- Silver chloride (AgCl) decomposes to form silver (Ag) and chlorine gas (Cl2).
- This reaction does not occur in the dark, on heating, or under high pressure.
- Silver chloride is sensitive to light. When it is exposed to sunlight, it absorbs the photons and breaks down into silver and chlorine gas.
- AgCl (s) → Ag (s) + 1/2 Cl2 (g) (in presence of sunlight)
Therefore, the chemical reaction 2AgCl (s) → 2Ag (s) + Cl2 (g) takes place in sunlight.
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