Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days


Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number


Mon to Sat - 11 AM to 8 PM

CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers

dehydration of alcohols to alkenes is usually carried out in presence of conc sulphuric acid and not by using HCl or HNO3. Give reasons..

Asked by azeem drabu 7th August 2012, 9:34 AM
Answered by Expert


In case of HCl  elimination reaction will compete with nucleophilic reaction due to Cl- ions which is a good nucleophile ,HCl and HNO3 are not  good dehydrating agents wheras H2SO4 is.
Hence elimination reaction in alcohols takes place in the presence of sulphuric acid leading to the formation of alkenes
Answered by Expert 9th August 2012, 2:35 PM

Rate this answer

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Report an issue
Your answer has been posted successfully!