Question

Which formula represents a molecule with the most polar bond?

a. CO
b. NO
c.HI
d.HCI

Answer 1

HCL

Step-by-step explanation:

Reference Table S lists the electronegativity of each element. The greater the difference in electronegativity, the more polar the bond. The electronegativity of H is 2.2 and the electronegativity of Cl is 3.2; the difference is the greatest of the choices listed.

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Answer 2

D) HCl is the most polar bond. This is because the electronegativity difference between these 2 elements in this molecule is larger than the other 3 molecules given. The bigger the electronegativity difference, the more polar the bond.