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Why are silver salts such as silver chloride and silver bromide mainly used in photography?

Answer and explanation

Correct answer: Due to their sensitivity to light

Silver chloride and silver bromide are photosensitive salts. On exposure to light, they decompose to form metallic silver, which appears dark grey or black and helps form a photographic image. For example: \(2\mathrm{AgBr}\xrightarrow{\text{light}}2\mathrm{Ag}+\mathrm{Br}_2\). Option C is incorrect because these salts are not chemically stable in light; they undergo a chemical change when exposed to it.

Related tags

ScienceClass 10Chemical ReactionsPhotochemical DecompositionSilver SaltsPhotography

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