LIPIDS are the biomolecule which has polar head and non polar tail
when hydrogen bonds with chlorine the chlorine atom has lone pairs which causes the bond not to be linear shaped that is why it is polar but as for chlorine and chlorine they both have lone pairs and...
The general rule is "like dissolves like", so nonpolar molecules are not usually very soluble in polar solvents.
It is a polar molecule
Yes - benzene is a very hydrophobic non-polar molecule. It can be nitrated with nitric acid which is very polar.