Non polar group example is chlorine, it contains two chlorine atoms.
A bond between two atoms or more atoms is non-polar if the atoms have the similar electronegativity or a variance in electronegativities that is less than 0.4.
Non polar covalent is a type of chemical bond that is create when electrons are divide equally between two atoms.
According to question
Carbohydrates and nucleic acid are polar.
Where as
Lipids have diverse structures, but all have a polar "head" and a non polar "tail"
Some are non polar protein for example non polar amino acids.
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