Explain whether Cl2XeF2 is necessarily polar.
In one word the answer is ‘NO’, its not necessarily polar. The polarity of XeCl2F2 depends on the arrangement of Cl and F around it. Geometry of XeF2Cl2 is square planar. The geometry is shown above, As you can see it got two different arrangements and in arrangement 1 the molecule is polar and in arrangement 2 its not.