Question

write the IUPAC name of following compounds​

Answer 1

Answer:

4-chloroethylbenzene

2,5- dichloromethylbenzene

Explanation:

The first one is 4-chloroethylbenzene.

As the count starts from strong compound, -cl from -C₂H₅ gets the count of 4, be it in clockwise or anti-clockwise. So, the name of the compound will be 4-chloroethylbenzene, as they are bonded with the benzene ring.

Similarly, The second one is 2,5- dichloromethylbenzene.

Counting from -CH₃, In clockwise direction, the first chlorine gets the count of 2 and the next one with 5. (Should choose the path with least numbered in bonding). As they are bonded with a benzene ring, the compound is 2,5- dichloromethylbenzene.

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