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  • (a) Write equations of the following reactions :        (i) Bromine in  with phenol   &

(a) Write equations of the following reactions :

       (i) Bromine in CS_{2} with phenol

       (ii) Treating phenol with chloroform in the presence of aq. NaOH

        (iii) Anisole reacts with HI

(b) Distinguish between :

      (i) Ethanol and Diethyl ether

      (ii) Propanol and t-butyl alcohol

 

 

 

 
 
 
 
 

Answers (1)

(a)

(i)

 

(ii)

 

(iii)

    

(b) (i) Ethanol and diethylether

        Ethanol on heating with NaOH and I_{2} gives yellow precipitate of iodoform but diethylether does not gives this test 

    OH-OH_{2}-CH_{3}\overset{NaOH+I_{2}}{\rightarrow}CHI_{3}\downarrow+CH_{3}COOHNa

        ethanol                                             yellow

(ii) Propanol and t-butylalcohol

       t-butylalcohole on treatment with Luca's reagent gives white tunbidity immediately but propanol does not gives this test.

Posted by

Sumit Saini

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