Hey guys,
First time posting here, please let me know if it's in the wrong subforum.
This is a question from an exam I printed out that my University supplied.
I'm a tad confused by it, and am seeking clarification.
9, b: Which of the following bonds is ionic, which is polar covalent and which is nonpolar.
Cl-Cl
H-Cl
O-Cl
Cl-Cl has an electronegative difference of 0, so it is non polar.
H-Cl has an electronegative difference of 0.96.
O-Cl has an electronegative difference of 0.28.
None of these differences are ionic bonds. They all demonstrate mainly nonpolar bonds to my understanding.
Out of the three options, H-Cl is more polar than the rest, so that would be my choice of a polar covalent molecule.
An ionic bond is between a non-metal and a metal.
O-Cl are both non metals, and only have an electronegative difference of 0.28 (All of them are non-metals = None of them are ionic*)
Would the answer be that there are 2 Polar Covalent molecules (as O-Cl isn't entirely non-polar) and 1 Non-Polar molecule?