Question

14. Assertion: AgBr is used on photographic and X-Ray film.Reason: AgBr is photosensitive and changes to Ag and Br in presence of sunlight andundergoes decomposition reaction.a) Both A and Rare true and R is the correct explanation of A.(b) Both A and R are true but R is not the correct explanation of A.C) A is true but R is false.(d) Both A and R are false.​

Answer 1

Answer:

opt a is the correct answer

Answer 2

Correct answer for given assertion and reason statement is - a) Both A and Rare true and R is the correct explanation of A.

•AgBr is a chemical compound. It is widely used in photography as photographic emulsions.

•On exposure to sunlight, thermal decomposition occurs. Thermal decomposition breaks the compounds into constituent molecules.

•Products formed on reaction are silver atom and bromine gas.

•Reaction for the process is-

2AgBr -> 2Ag + Br2

•AgBr is yellow in color, which on exposure to sunlight turns dark, thus developing a recognisable image.