MCQ
The correct $IUPAC$ name of $2-$ethyl$-3-$pentyne is :
  • A
    $3-$methyl hexyne$-4$
  • B
    $4-$ethyl pentyne$-2$
  • $4-$methyl hexyne$-2$
  • D
    None of these

Answer

Correct option: C.
$4-$methyl hexyne$-2$
c
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:

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