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Silver chloride turns grey in sunlight. This change is related to which energy and which product?

Answer and explanation

Correct answer: Light energy and silver

Silver chloride is photosensitive and decomposes when exposed to sunlight according to 2AgCl → 2Ag + Cl₂. Light energy initiates this decomposition, and the metallic silver produced appears grey, causing the visible colour change. The reaction is not driven by sound or electrical energy in this observation, and water or hydrogen is not formed. Thus the correct combination is light energy and silver, given in option A.

Related tags

ScienceClass 10Photochemical DecompositionSilver ChlorideChemical ReactionsChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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