The number of species having a square planar shape from the following is XeF 4 ,   SF 4 ,   SiF 4 ,   BF 4 - ,   BrF 4 - ,   Cu NH 3 4 2 + ,   FeCl 4 2 - ,   PtCl 4 2 -

Step-by-step solution

XeF 4 is sp 3 d 2 hybridised with two lone pairs of electrons, hence, it is square planar. SF 4 is sp 3 d hybridised with one lone pairs of electrons, hence, it is See saw. SiF 4 is sp 3 hybridised with zero lone pairs of electrons, hence, it is Tetrahedral BF 4 - is sp 3 hybridised with zero lone pairs of electrons, hence, it is Tetrahedral [ Cu ( NH 3 ) 4 ]   2 +   is dsp 2 hybridised and is Square planar [ FeCl 4 ]   2 – is sp 3 hybridised and is Tetrahedral [ PtCl 4 ]   2 – &#160