Q44 / 120 · NEET 2010 (Mains) · Chemistry

The IUPAC name of the compound $\mathrm{CH}_3 \mathrm{CH}=\mathrm{CHC} \equiv \mathrm{CH}$ is

  • A
    pent-4-yn-2-ene
  • Correct answer
    B
    pent-3-en-1-yne
  • C
    pent-2-en-4-yne
  • D
    pent-1-yn-3-ene

Solution

$$ \stackrel{5}{\mathrm{C}_3}-\stackrel{4}{\mathrm{C}} \mathrm{H}=\stackrel{3}{\mathrm{C}} \mathrm{H}-\stackrel{2}{\mathrm{C}} \equiv \stackrel{1}{\mathrm{C}} \mathrm{H} $$ pent-3-en-1-yne

Hence, the correct answer is option: 'B'.

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