MCQ
Select the correct statement 
  • A
    Photography is based upon photosensitivity of silver halide mainly $AgBr$
  • B
    Sodium thiosulphate is used to remove the unexposed $AgBr$ from photographic film
  • C
    $AuCl_3$ is used in toning
  • All are correct

Answer

Correct option: D.
All are correct
d

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