Which reducing agent slowly reduces silver, producing heavy density?
A)phenidone
B)hydroquinone
C)sodium carbonate
D)potassium bromide

Question

Quizplus · Accepted Answer

Hydroquinone is a reducing agent commonly used in black and white photography to slowly reduce silver halide crystals. It produces heavy density in the areas where the silver is reduced. Phenidone is a developing agent, sodium carbonate is a pH buffer, and potassium bromide is a restrainer used to prevent over-development.

Which Reducing Agent Slowly Reduces Silver, Producing Heavy Density