Why does photographic films get spoilt when exposed to sunlight? Give an equation to support your answer.

Open in App

Solution

Photographic films contain silver bromide or silver chloride which can undergo a photolytic decomposition reaction if exposed to sunlight.
This leads to the formation of silver metal on the film which appears as black spots on it.
$\underset{silver bromide}{\underset{}{2 AgBr}} \to \underset{silver}{\underset{}{2 Ag}} + \underset{bromine}{\underset{}{{Br}_{2_{}}}}$

Suggest Corrections

Similar questions

Why does a photographic film get spoilt if exposed to sunlight? Give an equation in support of your answer.

What happens when silver chloride is exposed to sunlight ? Write a chemical equation for this reaction. Also give one use of such a reaction.

State the energy changes taking place when the photographic film is exposed to the sunlight.

What does chloroform give when exposed to air and sunlight?

Join BYJU'S Learning Program