give a chemical test to distinguish butan2ol and 2methylpropane 2 ol.

Asked by vasturushi | 18th Jun, 2017, 09:07: PM

Expert Answer:

 
Butan-2-ol is secondary alcohol and 2-methylpropan-2-ol is tertiary alcohol.
 
Lucas test to distinguish between secondary and tertiary alcohols:
 
Both the alcohols are treated with Lucas reagent (HCl + ZnCl2)
 
Turbidity appears immediately for tertiary alcohols such as 2-methylpropan-2-ol.
In case of secondary alcohols such as Butan-2-ol, turbidity appears after 5 minutes.
 

Answered by Prachi Sawant | 19th Jun, 2017, 10:47: AM