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Question

A compound used in photography is:
  1. AgCl
  2. Ag2CO3
  3. AgNO3
  4. AgBr

A
AgCl
B
AgBr
C
AgNO3
D
Ag2CO3
Solution
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A yellowish, water-insoluble powder, AgBr, which darkens on exposure to light, produced by the reaction of silver nitrate with a bromide: used mainly in the manufacture of photographic films.
Hence option C is correct.

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