SCN is polar. This is because the bonds of the compounds have an imbalance in the position of the electrons.
polar
its polar.
Your terms are not clear. If you mean SCN (chem.) it's polar (yes, ions can be polar). If you ScN (Transistor), it can be either; it's a switching function.
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