Question
Chemistry Question on p -Block Elements
Which of the following bonds will be most polar ?
A
N-Cl
B
O-F
C
N-F
D
N-N
Answer
N-F
Explanation
Solution
Greater the electronegativity difference more is the polarity of the covalent bond formed by the elements. Electronegativity of N is approximately equal to Cl. Thus N-Cl and N-N bonds are almost non-polar. Out of O-F and N-F, N-F bond is more polar as electronegativity of N is less than O and F is most electronegative