Draw the cis and trans structures of ...

NCERT Class XI Chemistry Hydrocarbons Solutions

Question : 9 of 25

Marks: +1, -0

Draw the cis and trans structures of hex-2-ene. Which isomer will have higher boiling point and why?

Solution:

Of the given isomers, the cis isomer has a higher boiling point. This difference arises due to higher dipole moment of the cis isomer which introduces a somewhat ionic character in the compound. In the trans isomer, the dipoles cancel each other resulting in a small dipole moment as the case may be.

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