Question

Arrange the following bonds in order of increasing ionic character giving reason
N-H, F-H, C-H and O-H

Answer 1

Increasing ionic character of the given bonds is :
Electronegativity difference : `{:(N-H " " lt " "N-H" "lt " "O-H " "lt " "F-H),("(2.5-2.1) (3.0-2.1) (3.5- 2.1) (4.0-2.1)"),( = "0 . 4 = 0.9 = 1.4 = 1. 9 "):} `
Greater is the electronegativity differnce between the two bonded atoms, greater is the ionic character.