P-Block Elements Ques 456
Question: A solution of sulphur dioxide in water reacts with $ H_2S $ precipitating sulphur. Here sulphur dioxide acts as
[NCERT 1980; MP PMT 1994]
Options:
A) An oxidising agent
B) A reducing agent
C) An acid
D) A catalyst
Show Answer
Answer:
Correct Answer: A
Solution:
$ \underset{\text{reducing agent}}{\mathop{2H_2S}}+\underset{\text{oxidising agent}}{\mathop{SO_2}}\to 2H_2O+3S $
