Question

What are two examples of a nonpolar bond and two examples of a polar bond?

Answer 1

`"Non-polar bond"`: `H-H` in `"dihydrogen........."`

Explanation:

`"Non-polar bond"`: `H-H` in `"dihydrogen........."`; and `C-C` in `H_3C-CH_3`. Because there is no difference in electronegativity between the bonding atoms, there can be no polarity, nor charge separation, and hence a non-polar bond results.

`"Polar bond"`: `OH_2`, and `H-X`, there is charge separation between the oxygen/halogen and hydrogen atoms. The more electronegatve oxygen or halogen atom tends to polarize electron density towards itself. The result?

`"Bond polarity"`, which we could represent as: `""^(delta-)X-H^(delta+)` or `""^(delta+)H-O^(delta-)-H^(delta+)`.