The bonds are polar because chlorine is highly electronegative. That produces minor negative charge on each chlorine in the compound and minor positive on the boron. Because chlorine is large and boron small, the overall effect is to produce a molecule that appears to carry a slight negative charge because the minor positive charge is "buried" inside the molecule. To be trully polar, a molecule must have both a minor negative and minor positive charge open to its surroundings (not a good way to explain, but I hope it makes sense).
Neither: pure elements are not classified as polar or non-polar, but compounds are.
Neither. Borax is sodium borate, Na2B4O7•10H2O, which is an ionic compound.
It's non polar covalent
Polar
non polar.
Is NH4Cl polar or non polor
Oil is non polar
I2 is non-polar
non-polar
non polar
non polar
It is non polar.
Polar contains polar. Non-polar contains nothing.
water is polar and immiscible with the non-polar octanol.
Nonpolar
ClO4 is polar.