Question

4.
Which of the following compound have
maximum number of olefinic bond :-
(1) HỌC=CH-CH=O
(2) HOAC CH=CH-CH
O
O
(3) H,C=CH-C=C-CH=CH,
(4) HC-C=C-CH,​

Answer 1

Answer:

I don't understand your questions

Answer 2

Answer:

3) H,C=CH-C=C-CH=CH will be your answer