Question

1,3-pentadiene and 1,4-pentadiene are compared with respect to their intrinsic stability and reaction with Hl. The correct statement is:

A. 1,3-pentadiene is more stable and more reactive than 1,4-pentadiene
B. 1,3-pentadiene is less stable and less reactive than 1,4-pentadiene
C. 1,3-pentadiene is more stable but less reactive than 1,4-pentadiene
D. 1,3-pentadiene is less stable but more reactive than 1,4-pentadiene

Answer 1

The correct answer is Option C. 1,3-pentadiene is more stable but less reactive than 1,4-pentadiene.

Step-by-step explanation:

In comparing 1,3-pentadiene and 1,4-pentadiene with respect to their intrinsic stability and reaction with HI, we can consider the concept of delocalization of electrons, which results in a more stable molecule. Based on this, we can conclude that 1,3-pentadiene, which has a conjugated system of double bonds, is more stable than 1,4-pentadiene. However, with regard to reactivity, 1,3-pentadiene is actually less reactive than 1,4-pentadiene due to the delocalization of electrons making it less accessible for reaction.