MCQ
The $\text{IUPAC}$ name of $\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{CH}=\mathrm{CH}_2$ is :
- A$1, 1, 1-$ trimethyl $-2-$ propene
- B$3, 3, 3-$ trimethyl $-2-$ propene
- C$2, 2-$ dimethyl $-3-$ butene
- ✓$3, 3-$ Dimethyl $-1-$ butene
✓
Answer
Correct option: D.
$3, 3-$ Dimethyl $-1-$ butene
The $\text{IUPAC}$ name of $\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{CH}=\mathrm{CH}_2$ is $3, 3-$ dimethyl $-1-$ butene.
The parent hydrocarbon contains $4 C$ atoms and a $C=C$ double bond.
Hence, it is a butene. Two methyl groups are present as substituents on third $C$ atom.
Prefix di indicates two methyl groups.
The parent hydrocarbon contains $4 C$ atoms and a $C=C$ double bond.
Hence, it is a butene. Two methyl groups are present as substituents on third $C$ atom.
Prefix di indicates two methyl groups.
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