1.

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

Answer»

Solution :`CH_(3)CH=CHCH_(2)CH_(2)CH_(3)` is hex-2-ene. Their geometrical isomers are as FOLLOWS :

Boiling of cis-isomer is more.

`{:("Cis-Hex-2-ene",|,"Dipole moment is more."),("Trans-Hex-2-ene","Dipole moment is more.",),(THEREFORE " Boiling point is more",therefore " Boiling point is less",):}`
Where , boiling point `prop` dipole moment `(mu)`
`therefore` cis-isomer boiling point `GT` boiling point of trans.
Boiling point, ions in liquid `prop` boiling point
Negative meltingpoint `prop` INTERNUCLEAR force
`therefore` Tras MELTING point is more.


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