Question

(i) Write the IUPAC name of CH₃CH = C(CH₃)₂.

(ii) Convert propene to propan-1-ol.

(iii) How will you distinguish ethene and ethyne?

(iv) Write the structure of 3, 4-Dimethyl-hept-3-ene.

(v) Name the compounds obtained by ozonolysis of 3-Methyl-pent-2-ene

Answer 1

(i) IUPAC Name: 2-Methylbut-2-ene.

(ii) Addition of water to propene in presence of few drops of sulphuric acid (catalyst) and peroxide leads to the formation of propan-1-ol.

H₃C-CH = CH₂ + H₂O \(\underset{(peroxide)}{\stackrel{H^+}{\rightarrow}}\) CH₃-CH₂-OH (propan-1-ol)

(iii) Ethyne reacts with sodium to form sodium acetylide and hydrogen gas. However, this reaction is not given by ethene.

(iv)

(v)