Hello my dear...

 

see.. i strongly suggest NOT TO USE ANY FORMULA FOR HYBTIDISATION...

 

go by the basic funda.. as i explained in my previous reply...

 

okk.. with ur logic (@ ankur and spidy...) .. Oxygen in furan shud b sp3 hybridised.. as it does not have any pie-bonds in da structure... and you already know its SP²  not sp3 ^. See, any novice with ur logic will end up in trouble..

 

 

and again how do you manage to calculate the hybridisation of Mn and Cr in KMnO4 and K2Cr2O7 by using formula no. 2 ?? ... and u sill dunno whether its sp3 or dsp2 ?

 

(sorry... no hard feelings for anyone )