English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Preparation of alcohols from alkenes involves the electrophilic attack on alkene carbon atom. Explain its mechanism. - Chemistry

Advertisements
Advertisements

Question

Preparation of alcohols from alkenes involves the electrophilic attack on alkene carbon atom. Explain its mechanism.

Short/Brief Note
Advertisements

Solution

The mechanism of the reaction involves the following three steps:

Step 1: Protonation of alkene to form carbocation by the electrophilic attack of H3O+.

\[\ce{H2O + H+ -> H3O+}\]

Step 2: Nucleophilic attack of water on carbocation.

Step 3: Deprotonation to form an alcohol.

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [Page 160]

APPEARS IN

NCERT Exemplar Chemistry [English] Class 12
Chapter 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 43 | Page 160

RELATED QUESTIONS

Explain the mechanism of the following reaction:


How do you convert the following :
Phenol to anisole


Write the equations involved in the following reactions : Williamson synthesis


Illustrate with examples the limitations of Williamson synthesis for the preparation of certain types of ethers.


Explain the following with an example.

Williamson ether synthesis


Write the structure of 3-Bromo-2-methylprop-1-ene


Which of the following compounds gives a secondary alcohol upon reaction with methylmagnesium bromide?


HBr reacts with \[\ce{CH2 = CH - OCH3}\] under anhydrous conditions at room temperature to give ______.


Write the name of reagent and equation for the preparation of the following ethers by Williamson’s synthesis:

2-Methoxy-2-methylpropane


Write the name of the reagent and equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane


What will be the product (X and A)for the following reaction

  \[\ce{acetylchloride->[i)CH3MgBr][ii)H3O+]X ->[acidk2crp3]A}\] 


Write the names of reagents and equations for the preparation of the following ether by Williamson’s synthesis:

2-Methoxy-2-methylpropane


Short Answer Question.

Identify the product (s) is/are formed when 1 – methoxy propane is heated with excess HI. Name the mechanism involved in the reaction.


Write the name of reagent and equation for the preparation of the following ethers by Williamson’s synthesis:

2-Methoxy-2-methylpropane


Write the name of reagent and equation for the preparation of the following ether by Williamson’s synthesis:

2-Methoxy-2-methylpropane 


Write the name of reagent and equation for the preparation of the following ether by Williamson’s synthesis:

2-Methoxy-2-methylpropane


Write the name of reagent and equation for the preparation of the following ether by Williamson’s synthesis:

2-Methoxy-2-methylpropane


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×