MCQ
The $IUPAC$ name of the compound $CH_2 = CH -CH(CH_3)_2$ is
- A$1,1-$ dimethyl $-2-$ propene
- B$2-$ vinyl propene
- ✓$3-$ methyl but $-1-$ ene
- D$1-$ isopropyl ethene
✓
Answer
Correct option: C.
$3-$ methyl but $-1-$ ene
c
The IUPAC name of $\mathrm{CH}_{2}=\mathrm{CHCH}\left(\mathrm{CH}_{3}\right)_{2}$ is $3-$ methyl $-1-$ butene.
The IUPAC name of $\mathrm{CH}_{2}=\mathrm{CHCH}\left(\mathrm{CH}_{3}\right)_{2}$ is $3-$ methyl $-1-$ butene.
The numbering is started from the end which gives the lowest locants to doubly bonded $C$ atoms.
Hence, the option (C) is the correct answer.
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