The species having pyramidalshape is

1.	The species having pyramidalshape is
Answer» `SO_(3)` `BrF_(3)` `SiO_(3)^(2-)` `OSF_(2)` Solution :In VSERP theory, double BOND is counted as one bond pair. THEREFORE , no. of bond pairs around the CENTRAL S atom `= 2 (S-F)+ 1 (S = O)=3 ` No. of electron pairs around S atom `= ( 6 + 2 + 0 //2 = 4 ` No .of lone pairs ` 4-3= 1` Now accordingto VSEPR theory , a molecule with threebond pairs and one lone pair mustbe pyramidal.

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