Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Which of the following chemical reaction(s) is/are involved in developing of photographic plate?
A
C6H4(OH)2 + 2AgBr 
2Ag + C6H4O2 + 2HBr
2Ag + C6H4O2 + 2HBr
B
AgBr + 2Na2S2O3 
Na3 [Ag(S2O3)2] + NaBr
Na3 [Ag(S2O3)2] + NaBr
C
2AgNO3 + Na2S2O3 
Ag2S2O3 + 2NaNO3
Ag2S2O3 + 2NaNO3
D
AgNO3 + KCN 
AgCN + KNO3
AgCN + KNO3
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, b)
Used in developing of photography plate. i.e. to reduce Ag+ to Ag¯.
Fixing of photography plate i.e. to remove unreduced AgBr.
& reactions are not involved in photography.
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