Does silver chloride turns grey in the presence of sunlight. If yes, then why?
Answers
Explanation:
Silver chloride turns grey when kept in sunlight. This is because a photolytic decomposition reaction takes place where the white silver chloride decomposes in the presence of sunlight to form white silver and chlorine gas which escapes.
Answer- The above question is from the chapter 'Chemical Equations and Reactions'.
Photolytic decomposition reaction: It is a reaction in which a substance undergoes decomposition in the presence of light or sunlight.
Example:
1) Silver chloride/Silver Bromide undergoes photolytic decomposition reaction in the presence of sunlight to form Silver and Chlorine/Bromine gas.
Significance of these reactions: They are used in black and white photography.
2) Hydrogen Peroxide undergoes photolytic decomposition reaction in the presence of sunlight to form hydrogen and oxygen.
So, such substances are stored in dark coloured containers.
Question: Does silver chloride turns grey in the presence of sunlight. If yes, then why?
Answer: Silver chloride is white in colour. In the presence of sunlight, it undergoes photolytic decomposition reaction to form Silver and Chlorine gas is released. This Silver is grey in colour.