Question

name the salts that are used in black and white photography give reactions when they are exposed to light define type of chemical reaction taking place

Answer 1

Answer:

There are two salts that are used in the creation of the black and white photography which are Silver chloride and the silver Iodide. Silver halides are quite sensitive to the light, and when the photon particles fall, they start photochemical reactions to complete the job.

Answer 2

Answer:

Silver chloride is that compund which is used in black and white photography.

Equation :

2AgCl --sunlight---> 2Ag + Cl2.

Also, silver bromide is used for Black and white photography.

Equation :

2AgBr --sunlight---> 2Ag + Br2.

This type of reaction is called photo chemical decomposition reaction.