MCQ
What is the formula of Oleum?
- ✓$ H_{2}S_{2}O_{7} $
- B$H _2 SO _4$
- C$ H_{2}SO_{3} $
- D$ H_{2}SO_{5} $
✓
Answer
Correct option: A.
$ H_{2}S_{2}O_{7} $
A
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The enzyme purified and crystallised for the first time was:
Which is fight and flight organ?
Which one of the following aldehydes gives Cannizzaro reaction when heated with strong alkali?
A first order reaction has a half-life period 34.65 second. Its rate constant is :
The major product of acid catalysed dehydration of 1-methylcyclohexanol is:
Which carbohydrate is used in silvering of mirrors?
The most reactive amine towards dilute hydrochloric acid is $....... .$
→The correct order regarding the electronegativity of hybrid orbitals of carbon is:
The general electronic configuration of lanthanides is:
How much charge is required for reduction of 1 mole of $Al^{3+}$ to Al?
→