Reason
AgBr undergoes photochemical reaction.
Assertion
AgBr is used in photography.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Assertion is correct but Reason is incorrect
C
Both Assertion and Reason are incorrect
D
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Correct option is B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
AgBr is the most sensitive silver halide to photo reduction. Hence it is used as the light sensitive material in photographic films. The unchanged AgBr is dissolved in hypo solution to cast an image on photographic plate.
$$ 2AgBr \quad \xrightarrow {hv} \quad 2Ag +Br_2 $$