MCQ
$IUPAC$ name of ${(C{H_3})_3}C - CH = C{H_2}$ is
- A$3,3,3-$trimethyl$-1-$propene
- B$1,1,1-$trimethyl$-2-$propene
- ✓$3,3-$dimethyl$-1-$butene
- D$2,2-$dimethyl$-3-$butene
✓
Answer
Correct option: C.
$3,3-$dimethyl$-1-$butene
c
The IUPAC name of $\left( CH _3\right)_3 C - CH = CH _2$ is $3,3$ -dimethyl-$1$-butene.
The IUPAC name of $\left( CH _3\right)_3 C - CH = CH _2$ 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.
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