MCQ
The condensed formula of the following compound is ____________.

- A$\mathrm{CH}_3 \mathrm{CH}=\mathrm{C}=\mathrm{CHCH}_3$
- ✓$\mathrm{CH}_2=\mathrm{CHCH}=\mathrm{CH}_2 \mathrm{CH}_3$
- C$\mathrm{CH}_3 \mathrm{CH}=\mathrm{CHCH}=\mathrm{CHCH}_3$
- D$\mathrm{CH}_2=\mathrm{CHCH}=\mathrm{CH}_2$