Question

Draw the structures of hexane and water below and describe why each is or is not a polar molecule.

Answer 1

Solution :-

Structure of the hexane and water are shown in the following image

In the hexane molecule C-H and C-C bonds are present these bonds are not polar therefore hexane do no possess any dipole moment

in contrast the water molecule have H-O bond which is the polar bons because oxygen is more electronegative than H also the oxygen atom have 2 lone pair of electrons therefore it possess the permenent dipole moment in the water molecule.

Therefore water molecule is the polar molecule because of the presence of the permenent dipole moment while hexane is non polar molecule because of lacking of the permene dipole moment.