Problem: Which covalent bond is the most polar?A) C–F      B) N–F    C) F–F      D) Cl–F

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We’re being asked to determine the most polar covalent bond among the given choices. A covalent bond is formed by the sharing of electrons by two non-metals.

Recall that for a covalent bond to be:

• Polar: electronegativity difference must be greater than 0.5

• Non-polar: electronegativity difference must be less than 0.5

The higher the electronegativity difference, the more polar a bond is.

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Problem Details

Which covalent bond is the most polar?

A) C–F      

B) N–F    

C) F–F      

D) Cl–F

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