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Question

What is the correct IUPAC name of the given compound?

A
Ethenylbenzene
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B
Ethynylbenzene
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C
Ethylbenzene
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D
Phenylacetylene
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Solution

The correct option is B Ethynylbenzene
The compound contains an ethynyl group attached to the benzene ring. Thus, the IUPAC name of the compound will be ethynylbenzene.

Hence option (b) is the correct answer.


Theory :
Common names of some aromatic compounds:




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