In which of the following molecule/ion aU the bonds are not equal ?

1.	In which of the following molecule/ion aU the bonds are not equal ?
Answer» `XeF_(4)` `BF_(4)^(-)` `C_(2)H_(4)` `SiF_(4)` Solution :`C_(2)H_(4)` `XeF_(4) rArr ` 4bp + 2l `rArr` square planar `rArr` all bonds are equivalent `BF_(4)^(-) rArr` bp + 0lp tetrahedral (all bonds are EQUAL ) bond is not equal to C-H bond `SiF_(4) rArr 4 " bp" + 0lp rArr`tetrahedral (all bonds are equal) So, in `C_(2)H_(4)` all the bonds are not equal .

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