The electronegativity values of four elements are given.

The electronegativity values of four elements are given.

$$\begin{array}{|c|c|c|c|} \hline \mathbf{C} & \mathbf{N} & \mathbf{O} & \mathbf{F} \\ \hline 2.6 & 3.0 & 3.4 & 4.0 \\ \hline \end{array}$$

What is the order of increasing polarity of the bonds in the following compounds?