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03. Name two salts that are used in black and whitephotography Give equation for the reaction when theseand exposed to sunlight.

Answer»

There are twosalts that are usedin 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.

The two salts used in black and white photography are:1. Silver Chloride (AgCl)2. Silver Iodide (AgI)When photons which comes from the sunlight, photons fall and photochemical reaction occurs.Reaction:2AgCl(s) ----> 2Ag(s) + Cl2(g)Due to sunlight.



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