Alcohols Phenols And Ethers Question 216

Question: Alkenes convert into alcohols by

[MP PET 1991]

Options:

A) Hydrolysis by dil. $ H_2SO_4 $

B) Hydration of alkene by alkaline $ KMnO_4 $

C) Hydrolysis by water vapours and conc. $ H_2SO_4 $

D) Hydration of alkene by aqueous KOH

Show Answer

Answer:

Correct Answer: B

Solution:

$ CH_2=CH_2+H_2O+[O]\xrightarrow{alk.KMnO_4}\underset{Glycol}{\mathop{\underset{OH}{\mathop{\underset{|}{\mathop{CH_2}}}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH_2}}}}}} $

$ \underset{Ethene}{\mathop{CH_2=CH_2}}+H_2O\xrightarrow{Conc\text{.}H_2SO_4}\underset{Ethanol}{\mathop{CH_3-CH_2-OH}} $