D-And F-Block Elements Ques 198
Question: Photographic films and plates have an essential ingredient of
[CPMT 1980; CBSE PMT 1989]
Options:
A) Silver nitrate
B) Silver bromide
C) Sodium chloride
D) Oleic acid
Show Answer
Answer:
Correct Answer: B
Solution:
$ AgBr $ is most sensitive to light and undergoes photochemical reduction $ 2AgBr\xrightarrow{Light}2Ag+Br_2 $
