Detailed Solution
The correct option is 3 i.e. Sodium thiosulphate. Sodium thiosulphate and Ammonium thiosulfate are used as a fixer/developer in photography.
What chemicals are in photographic developer?
Popular developing agents are metol (monomethyl-p-aminophenol hemisulfate), phenidone (1-phenyl-3-pyrazolidinone), dimezone (4,4-dimethyl-1-phenylpyrazolidin-3-one), and hydroquinone (benzene-1,4-diol). Alkaline agent such as sodium carbonate, borax, or sodium hydroxide to create the appropriately high pH.
Which chemical is used in the photography?
Compound 'AgBr' is used in photography. Three silver compounds used in photography are silver chloride (AgCl), silver bromide (AgBr), and silver iodide (AgI).
Which chemical is used in developing a photo from a photographic film?
Detailed Solution\n\n The correct answer is Silver Bromide. Silver Bromide is used in developing a photo from a photographic film.
Which of the following is used as a photographic developer?
Hydroquinone is used as a developer for developing black and white photographic film.