Both polystyrene and cornstarch are made of polymers, which are long-chain molecules that have a basic repeating unit. Some polymers are polar (such as cornstarch), while others are non-polar (such as polystyrene). The polar parts of cornstarch are hydroxy (--OH) groups that hang off the main chain. These hydroxy groups interact with water molecules to form hydrogen bonds, and as a result, cornstarch is soluble in water.-Journal of Chemical Education
According to this, cornstarch is polar and the source seems pretty credible was the Google entry right under this one so way to look it up!
Cooking oil is basically non polar even though a triglyceride and thus has 3 ester groups.
Cooking oil is Non Polar
yes, all oils are hydrophobic
Vegetable oil is non-polar
Non polar
No
yes
nonpolar or polar
polar covalent
Nonpolar
non polar
yes
There are two isomers of Ethenediol. One is polar and the other is nonpolar.
It's ionic, not polar
yes. yes it is.
It is non polar
nonpolar
Cl4 does not exist, but if CCl4 is meant: this is a nonpolar compound
It is nonpolar