Answer to Question #89567 in Organic Chemistry for Anu

Question

Compound A gives positive test with Lucas reagent in 5 minutes.A reacts with PCL5 to Form B. B reacts with chlorobenzene and sodium with ether to form C. C is used for purest preparation of phenol. identify A, Band C.

Answer 1

 A positive test with Lucas reagent indicates that A is a seconadty or tertiary alcohol, the time 5 min indicates that this alcohol is secodary. Also this test indicates that there are 6 or less carbon atoms in A.

Reaction of alcohol with PCl₅ leads to formation of chloralkane (B).

Reaction of B with chlorobenzene and sodium with ether is Wurtz Fitting reaction leading to formation of alkylbenzene (C).

Alkylbenzene which is used for purest preparation of phenol. is cumene.

So, A - propan-2-ol, B is 2-chloropropane, C is cumene.