Chemistry Class 11 NCERT Solutions: Chapter 13 Hydrocarbons Part 3

Q: 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) Equation (one double bond)

(B) Equation (one triple bond)

Answer

(A) The following structural isomers are possible for Equation with one double bond:

Q 3 A Structure of Isomers with One Double Bond

Q 3 a Structure of Isomers With One Double Bond

Q 3 A Structure of Isomers 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:

Q 3 B Structure of Isomers with One Triple Bond

Q 3 B Structure of Isomers With One Triple Bond

Q 3 B Structure of Isomers 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-ene.

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