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Comment on the nature of two S-O bonds formed In SO_2 molecule. Are the two S-O bonds in this molecule equal? |
Answer» Solution :`S` in `SO_2` molecule is `sp^2` hydridised with 1 line pair of electron.  Two of the three `sp^2` orbitals form two `sigma`-bonds with O-atoms and third contains the lone pairs of electrons. After this, there is ONE UNPAIRED electron in 3p and 3d orbitals, which form one `ppi-ppi` and one `ppi-dpi` bond with O- atoms. Thus `SO_2` has a BENT structure. Due to RESONANCE, the two `S=O` have equal bond length. |
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