Question

How will u distinguish between 1 propanol and 2-methyl-2-propanol?

Answer 1

Lucas Test in alcohol is a test used to differentiate between Primary, Secondary and Tertiary alcohols. This test is carried out with the help of Lucas reagent, which is a solution of anhydrous ZnCl2 and conc. HCl.
In case of tertiary alcohols, instantaneous turbidity appears in the solution while in secondary alcohols turbidity appears after
4-5 minutes.
2-butanol is a secondary alcohol so turbidity will appear after 4-5 min while 2-methyl-2-propanol is a tertiary alcohol so immediate turbidity will appear and hence the two can be distinguished.
CH3CH2CH(OH)CH3 + ZnCl2 + HCl →CH3CH2CH(Cl)CH3     2−Butanol                                            (turbidity after 4−5 min)CH3−C(OH)(CH3)−CH3 + ZnCl2 + HCl →CH3C(Cl)(CH3)CH3   2−Methyl−2−propanol                         
     (immediate turbidity)                                    

Answer 2

Answer:

Victor Meyer's Test

Explanation:

Primary(1*) Alcohol will give blood red colour.

Secondary(2*) Alcohol will give Blue colour

Tertiary(3*) Alcohol will give no colour.