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# Molecular geometries of $SF_4,CF_4$ and $XeF_4$ are :

$\begin{array}{1 1}(a)\;\text{the same with 1,1 and 1 lone pairs of electrons respectively}\\(b)\; \text{different with 1,0 and 2 lone pairs of electrons respectively}\\(c)\;\text{different with 0,1 and 2 lone pairs of electrons respectively}\\(d)\;\text{the same with 2,0 and 1 lone pairs of electrons respectively}\end{array}$

According to VSEPR theory different geometries with 1,0 and 2 lone pairs of electrons.
Hence (b) is the correct answer.
edited Mar 20, 2014