Question

Using the electronegativity values in the chart below, which bond is the most polar?

Answer 1

Answer:

C-O

Explanation:

you have to check the all four bonds and find out their electronegativity difference. Whichever has the largest difference, is your answer.

1. N-O = 3.04 - 3.44 = -0.4
2. Cl-Cl = 3.16 -3.16 = 0
3. C-O = 3.44 -  2.55 = 0.89
4. C-H = 2.55 - 2.20= 0.35

Now check the differences, the largest electronegativity differences means the most polar bond