MCQ
Identify the correct formula of oleum from the following
- ✓$H_2S_2O_7$
- B$H_2SO_3$
- C$H_2SO_4$
- D$H_2S_2O_8$
✓
Answer
Correct option: A.
$H_2S_2O_7$
a
Oleum $\to$ pyrosulphuric acid ($H_2S_2O_7$)
Oleum $\to$ pyrosulphuric acid ($H_2S_2O_7$)
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