MCQ
The $IUPAC$ name of the following compound is
- ✓trans$-{2-}$chloro$-{3-}$iodo$-{2-}$pentene
- Bcis$-{3-}$iodo$-4-$chloro$-{3-}$pentane
- Ctrans$-{3-}$iodo${-4}-$chloro$-{3-}$pentene
- Dcis$-{2-}$chloro$-{3-}$iodo$-{2-}$pentene.
✓
Answer
Correct option: A.
trans$-{2-}$chloro$-{3-}$iodo$-{2-}$pentene
a
The parent hydrocarbon contains $5 C$ atom continuous chain with one $C = C$ bond between second and third carbon atom. Hence, it is named as $2$-pentene.
The parent hydrocarbon contains $5 C$ atom continuous chain with one $C = C$ bond between second and third carbon atom. Hence, it is named as $2$-pentene.
One $Cl$ and one $I$ are present at second and third carbon atom respectively. The molecule has trans geometry across $C = C$ bond.
Hence, it is named trans-$2$-chloro-$3$-iodo-$2$-pentene.
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