P-Block Elements Ques 466
Question: Which one of the gas dissolves in $ H_2SO_4 $ to give oleum
[CPMT 1988]
Options:
A) $ SO_2 $
B) $ H_2S $
C) $ S_2O $
D) $ SO_3 $
Show Answer
Answer:
Correct Answer: D
Solution:
$ H_2SO_4+SO_3\to \underset{(OleumorFumingH_2SO_4)}{\mathop{H_2S_2O_7}} $