Like the New Interface?

How do you like the New Interface (Design)?


Any comments?

Submit

Question on Alcohol Phenol Ether


Concept Superstars

manik
manik
Ask manik to answer this question.

Ace this topic

Alcohol Phenol Ether
Alcohol Phenol Ether

Register For Free Practice Questions


Smart Rai
Smart Rai
  Offline

Posted on : 12:57:43 PM on July 30, 2009

How to distinguish between primary ,secondary and tertiary alcohols ?

Hide

Answers :

Prashant kumar
  Prashant
Posted on : 02:19:54 PM on July 30, 2009

One of the best option to distinguish all above alcohols is Lucas Test.

Lucas Test : This test is based on the diffrence in the reactivity of primary , secondary and tertiary alcohols with Lucas reagents (Equimolecular mixture of anhydrous ZnCl2 and conc. HCI) .
Thus when to an alcohol, Lucas reagent is added and

1) If no turbidity is obtained ,its is primary alcohol, this is because lower halides are soluble in water.
                                                        
                                                            H
                                                             |
ZnCl2 + 2HCI + ROH ------------> RO+H ----Cl-------> RCI + H2

2) If turbidity is obtained afetr a few minute,it is secondary alcohol.

3) If  turbitidy is obtained at once, it is tertairy alcohol
 



Comment !
anvesh patloori
  anvesh
Posted on : 08:20:16 PM on February 17, 2011

 you can even test it by oxidation



Comment !











» Popular Questions
 why CN-    is chemically reactive while N2 i...
By: sampat at 01:57:59 PM on October 26, 2010

when a body is in equilibrium the what does it mean
By: Namita at 05:01:27 PM on July 30, 2009

what is interference
By: satyendra at 05:50:27 PM on January 20, 2011

More Questions...

   Forgot Password?
Login using Facebook Login using Facebook Connect!


Not A Member?  Register for FREE!