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Subjects
Class 10ScienceChemical Substances – Nature and BehaviourChemical Reactions and EquationsHardLevel 5

When silver chloride is exposed to sunlight, it turns grey. What is the main reason for this colour change?

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Answer and explanation

Correct answer: Formation of silver metal

Silver chloride is photosensitive and decomposes in sunlight: \(2\mathrm{AgCl}(s) \xrightarrow{\text{sunlight}} 2\mathrm{Ag}(s) + \mathrm{Cl}_2(g)\). The silver metal formed is grey, so the silver chloride appears grey. Chlorine is produced as a gas, not as a solid.

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scienceclass 10chemical reactionsphotochemical decompositionsilver chloride

Frequently asked questions

What is the correct answer to this question?

Formation of silver metal

Why is this the correct answer?

Silver chloride is photosensitive and decomposes in sunlight: \(2\mathrm{AgCl}(s) \xrightarrow{\text{sunlight}} 2\mathrm{Ag}(s) + \mathrm{Cl}_2(g)\). The silver metal formed is grey, so the silver chloride appears grey. Chlorine is produced as a gas, not as a solid.

Which subject and chapter does this question cover?

This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.

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