Oleum is composed of H_ 2 SO_ 4 and which constituent? - Vidyadip

MCQ

Oleum is composed of $ H_{2}SO_{4} $ and which constituent?

A
$ SO_{2} $
✓
$ SO_{3} $
C
$ H_{2}S $
D
$ HSO_{4}^{-} $

✓

Answer

Correct option: B.

$ SO_{3} $

B

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