Why do we store silver chloride in dark coloured bottles?
Silver chloride gets decomposed by sunlight. Sunlight contains photons- a source of energy which decomposes silver chloride to silver and chlorine.
2AgCl(s) → 2Ag(s) + Cl2 (g)
So to protect from the decomposition of silver chloride by sunlight, they are stored in dark coloured bottles.
As the chemical reaction occurs in the presence of sunlight, so the reaction is known as photochemical reactions. It is an example of the photochemical decomposition reaction.
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Which among the following statement(s) is(are) true? Exposure of silver chloride to sunlight for a long duration turns grey due to:
(i) The formation of silver by decomposition of silver chloride
(ii) Sublimation of silver chloride
(iii) Decomposition of chlorine gas from silver chloride
(iv) Oxidation of silver chlorideEvergreen Science
Which of the following are exothermic processes?
(i) Reaction of water with quicklime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)Evergreen Science
(b)Lakhmir Singh & Manjit Kaur - Chemistry