Question

The main product of the following reaction is
C₆H₅CH₂CH(OH)CH(CH₃)₂ □(→┴conc.H₂SO₄ )?
(a) H₅C₆ H
C = C
H CH(CH₃)₂
(b) C₆H₅CH₂ CH₃
C = C
H CH₃
(c) H₅C₆CH₂CH₂
C = CH₂
H₃C
(d) C₆H₅ (CH₃)₂
C = C
H H
C = C
CH(CH3)2
H

Answer 1

Answer:

The answer is option [a]

H₅C₆ HC = CH CH(CH₃)₂

Explanation:

Beacause here, there is no base is provided with the reagent so rearreangement of carbocation takes place

Answer 2

The main product of the following reaction is :

Reaction : C₆H₅CH₂CH(OH)CH(CH₃)₂ □(→┴conc.H₂SO₄ )

=> conc.H₂SO₄ is used as dehydrating agent.

• It removes H₂O molecule from the compound forming double bond at that particular site.

• C₆H₅CH₂CHCH(CH₃)₂ deprotonates H+ from

|

OH

carbon next to bezene ring and OH- from next to next carbon to form H₂O.

• C₆H₅CH₂CHCH(CH₃)₂ (→┴conc.H₂SO₄ )

|

OH

C₆H₅CH=CHCH(CH₃)₂ ( Final product )

Correct option : (a) H₅C₆HC=CHCH(CH₃)₂