Question

Which of the following is the most stable diene ? Explain (ans is d q314)

Answer 1

hey mate here is your answer

i guess it is (b) , (c)

because compunds with alternate double bonds are more stable than other compounds

hope it may help you

PLEASE MARK ME THE BRAINLIEST!!!

Answer 2

Answer:

The trans-1,3 pentadiene is most stable among the given dienes.

Therefore the option (c) is correct.

Explanation:

• The stability of diene depends upon the conjugation. More the delocalization of electron density , more the conjugation. Therefore more the stability of diene.

• Among the given options the structure (a) has no conjugation. The structure (d) is not a diene, because a diene has two double bond in it.

• While option (c) is cis 1,3-pentadiene and option (d) is trans 1,3- pentadiene, They both are diene and have conjugation.
• But  trans 1,3- pentadiene is more stable than  cis 1,3-pentadiene  because cis 1,3-pentadiene has unfavorable steric hindrance between the bulky groups. on the other hand in trans 1,3- pentadiene both bulky groups are on opposite sides.

Therefore trans 1,3- pentadiene is most stable.