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STD 11 - 8.1. Organic chemistry Nomenclature of organic compounds — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 8.1. Organic chemistry Nomenclature of organic compounds4 Marks
MCQ
The $UPAC$ name of the compound $C{H_2} = CH - C{H_2} - C{H_2} - C \equiv CH$ is
  • A
    $1, 5-$hexenyne
  • B
    $1-$hexyne$-5-$ene
  • C
    $1, 5-$hexynene
  • ✓
    $1-$hexene$-5-$yne
✓

Answer

Correct option: D.
$1-$hexene$-5-$yne
d
The double bond gets priority over the triple bond.

So, the IUPAC name of the given formula is hex-$1$-en-$5$-yne or $1$-hexene-$5$-yne.

$\stackrel{1}{ CH _2}=\stackrel{2}{ CH }-\stackrel{3}{ CH _2}-\stackrel{4}{ C } H _2-\stackrel{5}{ C } \equiv \stackrel{6}{ CH }$

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