Doubt in chemical bonding

Question no 46 answer is 5 only but confirm whether the answers are SF6,Ch4,Ch2cl2,Co2 and I3- ?

I think XeF4,SF6,CH4,CO2,I3-

Are all bond lengths in Xef4 equal and why not Ch2cl2 ?

Yes it is square planar and in CH2Cl2 note C-H bond , there is very less electronegativity difference , but in C-Cl bond there is much en difference so bond lenght will be shorter in C-Cl

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