Multiple choice

Which silver salt is used for making film for photography?

  1. Silver bromide

  2. Silver chloride

  3. Silver sulphate

  4. Silver nitrate
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A Correct answer
Explanation

Silver bromide (AgBr) is the light-sensitive compound used in photographic film and paper due to its photochemical properties - it darkens when exposed to light. Silver chloride is also light-sensitive but less commonly used in film. Silver sulphate and silver nitrate are not used in photographic emulsions.

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