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What is the most correct reason for keeping silver salts in dark-coloured bottles?

Answer and explanation

Correct answer: To prevent decomposition by light

Many silver salts, such as silver chloride and silver bromide, are photosensitive. Light can supply energy for their decomposition, producing changed substances; for example, silver chloride darkens as silver forms. A dark or amber bottle absorbs or blocks much of the incident light and slows this photochemical reaction. It does not increase solubility, cause combustion, or remove mass. Hence option A is correct.

Related tags

ScienceClass10Photochemical DecompositionSilver SaltsChemical ReactionsChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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