Question

In what form is silver present in the solutions after developing and fixing photographic film?

• A. soluble only
• B. insoluble only
• C. soluble and insoluble both
• D. None of these

Answer 1

The correct option is C soluble and insoluble both

In the processing of photographic films, plates or papers, the photographic developer (or just developer) is one or more chemicals that convert the latent image to a visible image. Developing agents achieve this conversion by reducing the silver halides (AgBr, AgCl) which are pale-coloured, into silver metal, which is black (when a fine particle).[1] The conversion occurs within the gelatine matrix.

Also, during the photographic film processing, Silver leaches into the fixer solution (Sodium Thio-Sulphate) from the photographic film and forms Silver Thio-Sulphate complexions.