What is the deeper reason for keeping silver bromide in a dark coloured bottle?
Answer and explanation
Correct answer: To prevent its decomposition by light energy
Silver bromide is photosensitive. Light supplies energy that can cause it to decompose, producing silver and bromine; this property is related to photochemical reactions and was used in photographic materials. A dark or amber bottle absorbs or blocks much of the incident light, reducing decomposition during storage. Therefore A is correct; the bottle is not intended to promote burning, dissolving, or mass gain from air.
Frequently asked questions
What is the correct answer to this question?
To prevent its decomposition by light energy
Why is this the correct answer?
Silver bromide is photosensitive. Light supplies energy that can cause it to decompose, producing silver and bromine; this property is related to photochemical reactions and was used in photographic materials. A dark or amber bottle absorbs or blocks much of the incident light, reducing decomposition during storage. Therefore A is correct; the bottle is not intended to promote burning, dissolving, or mass gain from air.
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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