Question

(48.) Which of the following reaction is an example of B-elimination?
(1) CH - CH - OH CỤ CH CHO
12) CH3 -CHBrBase CH = CH,
40 Br - CH2 - CH - CH2 - BrZn →
(4) CH = CH,
CH, -C
consider attachment​

Answer 1

Answer:

option 2 is right.

because Br from alpha carbon and hydrogen from the beta carbon is eliminated