Question

If the elements W, X, Y, and Z have electronegativity values of 1.0, 2.0, 2.5, and 3.5, respectively, which bond is the least polar

Answer 1

Answer:

XY bond is the least polar

Explanation:

Given

$W = 1.0$

$X = 2.0$

$Y = 2.5$

$Z = 3.5$

Required

The least polar bond

First, we calculate the difference in the electronegativities

$WX = X - W$

$WX = 2.0 - 1.0$

$WX = 1.0$

$WY = Y - W$

$WY =2.5 - 1.0$

$WY =1.5$

$WZ =Z-W$

$WZ =3.5 - 1.0$

$WZ =2.5$

$XY = Y -X$

$XY = 2.5 -2.0$

$XY = 0.5$

$XZ = Z -X$

$XZ = 3.5 -2.0$

$XZ = 1.5$

$YZ = Z - Y$

$YZ = 3.5 - 2.5$

$YZ = 1.0$

The least of the above calculations will be the least polar.

Hence, XY is the least polar