The correct answer is B. Silver bromide.
Silver bromide is a chemical compound with the formula AgBr. It is a white, odorless, and tasteless solid that is soluble in water. Silver bromide is used in photography as the light-sensitive component of photographic film. When exposed to light, silver bromide is converted to silver metal, which forms the image on the film.
Sodium chloride is a chemical compound with the formula NaCl. It is a white, crystalline solid that is commonly known as table salt. Sodium chloride is a major component of seawater and is used in many industrial and commercial applications.
Silver iodide is
a chemical compound with the formula AgI. It is a white, crystalline solid that is soluble in water. Silver iodide is used in photography as a light-sensitive component of photographic film. When exposed to light, silver iodide is converted to silver metal, which forms the image on the film.Silver chloride is a chemical compound with the formula AgCl. It is a white, crystalline solid that is soluble in water. Silver chloride is used in photography as a light-sensitive component of photographic film. When exposed to light, silver chloride is converted to silver metal, which forms the image on the film.
Of the four options, only silver bromide is used in making sensitive emulsion on photographic film.