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Nomenclature of Straight Chain Hydrocarbon

The IUPAC nam...

Question

The IUPAC name for following compound is

A

Non-4-ene-1,8-diyne

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B

Non-4-en-1,8-diyne

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C

Non-5-ene-1,8-diyne

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D

Non-5-en-1,8-diyne

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Solution

The correct option is A Non-4-ene-1,8-diyne
The correct numbering in the present case is one that gives lowest possible number to double bond, thus correct numbering to longest chain is given by :
lowest locant is 1,4,8

Hence, correct IUPAC name is
Non-4-ene-1,8-diyne

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Nomenclature of Straight Chain Hydrocarbon

Standard X Chemistry

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