Ncert Exercises & Solutions

Question 13.2:-

Write IUPAC names of the following compounds :

(a) CH3CH=C(CH3)2 (b) CH2=CH-C≡C-CH3

(b) CH2–CH2–CH=CH2

(c)

(d)

(e)

(g) CH3 – CH = CH – CH2 – CH = CH – CH – CH2 – CH = CH2

C2H5

(a)

H_{3} \overset{4}{C} - \overset{3}{C} H = \overset{2}{C} - \overset{1}{C} H_{3}

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C H_{3}

IUPAC name: 2-Methylbut-2-ene

(b)

\overset{1}{C} H_{2} = \overset{2}{C} H - \overset{3}{C} = \overset{4}{C} - \overset{5}{C} H_{3}

IUPAC name: Pen-1-ene-3-yne

(c)

can be written as:

H_{2} \overset{1}{C} = \overset{2}{C} H - \overset{3}{C} H = \overset{4}{C} H_{2}

IUPAC name: 1, 3-Butadiene or Buta-1,3-diene

(d)

IUPAC name: 4-Phenyl but-1-ene

(e)

IUPAC name: 2-Methyl phenol

(f)

can be written as:

IUPAC name: 5-(2-Methylpropyl)-decane

(g)

IUPAC name: 4-Ethyldeca-1, 5, 8-triene