Question

ch of the following bonds is a nonpolar covalent bond?answer:ah-fbn-fcf-cidf-f

Explanation:

A non - polar covalent bond occurs when the electronegativity difference between two atoms is zero. In the \(F - F\) bond, both atoms are the same (fluorine), so the electronegativity difference is zero. For \(H - F\), the electronegativity of \(H\) is approximately \(2.1\) and of \(F\) is \(4.0\), so the difference is \(4.0 - 2.1=1.9\). For \(N - F\), the electronegativity of \(N\) is about \(3.0\) and of \(F\) is \(4.0\), so the difference is \(4.0 - 3.0 = 1.0\). For \(F - Cl\), the electronegativity of \(F\) is \(4.0\) and of \(Cl\) is \(3.0\), so the difference is \(4.0-3.0 = 1.0\). Only when the electronegativity difference (\(\Delta\chi\)) is zero (or very close to zero, usually \(\Delta\chi<0.5\) for a non - polar covalent bond approximation), the bond is non - polar covalent.

Answer:

D. \(F - F\)