Extraction of Metals - Result Question 91
94. Give reason for the following in one or two sentences : “Silver bromide is used in photography.”
(1983)
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Solution:
- $AgBr$ is sensitive to visible light.
$ AgBr \xrightarrow{h \nu} Ag+\frac{1}{2} Br _2 $
A photographic plate coated with $AgBr$, when exposed to light, gets blackened due to the above reaction.
BETA
