Question

13.molecules containing only polar covalent bonds
a. are always polar.
b. may or may not be polar.
c. are always ionic.
d. are always nonpolar.

1. what factor other than electronegativity determines whether a molecule as a whole is polar or

Explanation:

Polar covalent bonds are bonds where electrons are shared unequally between atoms. However, the overall polarity of a molecule depends on its shape. For example, in \(CO_2\), the \(C = O\) bonds are polar covalent. But because \(CO_2\) is a linear molecule (\(O = C=O\)), the bond dipoles cancel each other out, and the molecule is non - polar. In \(H_2O\), the \(O - H\) bonds are polar covalent, and because \(H_2O\) has a bent shape, the bond dipoles do not cancel, and the molecule is polar. So, molecules with only polar covalent bonds may or may not be polar.

Answer:

b. may or may not be polar.