Given the following electronegativities: C = 2.5,N = 3.0,O = 3.5,F = 4.0,arrange the bonds according to decreasing polarity.

Question

Quizplus · Accepted Answer

Electronegativity is the ability of an atom to attract electrons towards itself. The greater the electronegativity difference between two bonded atoms, the more polar the bond. Therefore, the bond with the biggest electronegativity difference between C and any of the other atoms will be the most polar. From the given set of electronegativities, it can be seen that C-F has the highest electronegativity difference and will be the most polar bond. Similarly, C-O has a higher electronegativity difference than C-N, making the C-O bond more polar than the C-N bond. Finally, the C-C bond has no polarity as the two atoms have the same electronegativity. Therefore, the correct order of bonds according to decreasing polarity is C-F > C-O > C-N > C-C, which is represented by choice C.

Given the Following Electronegativities: C = 2