HomeLearn Fast select Course
Show Unit/ChapterChange UnitChange SubjectLast Menu
NEET-XI-Chemistry

06: Hydrocarbons

 page 2
Qstn# 3 Prvs-QstnNext-Qstn
  • #3
    For the following compounds, write structural formulas and IUPAC names for all possible isomers having the number of double or triple bond as indicated:
    (a) C4H8 (one double bond)
    (b) C5H8 (one triple bond)
    (b) C5H8 (one triple bond)
    Ans : null (a) The following structural isomers are possible for C4H8 with one double bond:







    The IUPAC name of

    Compound (I) is But-1-ene,

    Compound (II) is But-2-ene, and

    Compound (III) is 2-Methylprop-1-ene.
    (b) The following structural isomers are possible for C5C8 with one triple bond:







    The IUPAC name of

    Compound (I) is Pent-1-yne,

    Compound (II) is Pent-2-yne, and

    Compound (III) is 3-Methylbut-1-yne.
    (b) The following structural isomers are possible for C5C8 with one triple bond:







    The IUPAC name of

    Compound (I) is Pent-1-yne,

    Compound (II) is Pent-2-yne, and

    Compound (III) is 3-Methylbut-1-yne.
  • #3-a
    C4H8 (one double bond)
    (b) C5H8 (one triple bond)
    Ans : The following structural isomers are possible for C4H8 with one double bond:







    The IUPAC name of

    Compound (I) is But-1-ene,

    Compound (II) is But-2-ene, and

    Compound (III) is 2-Methylprop-1-ene.
    (b) The following structural isomers are possible for C5C8 with one triple bond:







    The IUPAC name of

    Compound (I) is Pent-1-yne,

    Compound (II) is Pent-2-yne, and

    Compound (III) is 3-Methylbut-1-yne.
  • #3-b
    C5H8 (one triple bond)
    Ans : The following structural isomers are possible for C5C8 with one triple bond:







    The IUPAC name of

    Compound (I) is Pent-1-yne,

    Compound (II) is Pent-2-yne, and

    Compound (III) is 3-Methylbut-1-yne.