MCQ
How many chain isomers can be formed by butane?
- AOne
- BThree
- ✓Two
- DFour
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Period number | Group number | |
| $P$ | $2$ | $15$ |
| $Q$ | $3$ | $2$ |
Then formula of the compound formed by $P$ and $Q$ element is