Question

The decomposition reaction of silver bromide into silver and bromine by light is used in the manufacturing of cement.

• A. True
• B. False

Answer 1

The correct option is B False

Photochemical decomposition of silver bromide:

• Silver halides are very sensitive to sunlight and undergo decomposition reactions.
• So, silver bromide undergoes decomposition to form silver and bromine.
• The balanced chemical reaction can be represented as:

$\underset{\mathrm{Silver}\mathrm{bromide}\left(\mathrm{Yellow}\right)}{\mathrm{AgBr}\left(\mathrm{s}\right)}\stackrel{\mathrm{Sunlight}}{\to }\underset{\mathrm{Silver}\left(\mathrm{grey}\right)}{2\mathrm{Ag}}+\underset{\mathrm{Bromine}}{{\mathrm{Br}}_2}$

• In fact, the reaction of silver bromide with sunlight to for silver and bromine used in black and white photography.

Hence, the given statement is false.