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Question

Amongest the following, the acceptable name as per IUPAC nomenclature is :

A
pent-4-en-1-yne
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B
pent-1-en-4-yne
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C
2, 2-dimethyl-4-ethylpentane
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D
3-hydroxybutan-1-ol
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Solution

The correct option is B pent-1-en-4-yne
In naming hydrocarbons, alkenes gets position first priority as compared to alkynes so the correct name is pent-1-en-4-yne. But in numbering carbons, alkynes gets higher priority than alkenes.

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