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

XY bond is the least polar

Step-by-step 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