1) because lone pair are larger than boding pair, lonepair-lone pair interations

Question

1) because lone pair are larger than boding pair, lonepair-lone pair interations are greater than lone pair-bonding pairinteractions, which are in turn larger than bonding pair-bondingpair interactions. using this notion, suggest how the followingspeacies would distort from regular geometries. a) OF2 b) SCL2 c) PF3 1) because lone pair are larger than boding pair, lonepair-lone pair interations are greater than lone pair-bonding pairinteractions, which are in turn larger than bonding pair-bondingpair interactions. using this notion, suggest how the followingspeacies would distort from regular geometries. a) OF2 b) SCL2 c) PF3

Explanation / Answer

No . f hybrid orbitals , H = ( V + S - C + A ) / 2
Where V Valence of the central atom S = No . of single valence atoms C = No . of cations A = No . of anoins a) OF2 H = ( 6 + 2 -0-0 ) / 2     = 4 -------Corresponds to sp3hybridization So , the structure is tetrahedral.But out of the 6 electronson O only two are occupied by two F atoms,2 lone pairs areremained on O atom which causes lone pair - lone pair repulsions.sothe the geometry of the molecule is bent (or) V- shape. H = ( 6 + 2 -0-0 ) / 2     = 4 -------Corresponds to sp3hybridization So , the structure is tetrahedral.But out of the 6 electronson O only two are occupied by two F atoms,2 lone pairs areremained on O atom which causes lone pair - lone pair repulsions.sothe the geometry of the molecule is bent (or) V- shape. b) SCL2 H = ( 6 + 2 -0-0 ) / 2     = 4 -------Corresponds to sp3hybridization So , the structure is tetrahedral.But out of the 6 electronson S only two are occupied by two Cl atoms,2 lone pairs areremained on O atom which causes lone pair - lone pair repulsions.sothe the geometry of the molecule is bent (or) V- shape. H = ( 6 + 2 -0-0 ) / 2     = 4 -------Corresponds to sp3hybridization So , the structure is tetrahedral.But out of the 6 electronson S only two are occupied by two Cl atoms,2 lone pairs areremained on O atom which causes lone pair - lone pair repulsions.sothe the geometry of the molecule is bent (or) V- shape. H = ( 6 + 2 -0-0 ) / 2     = 4 -------Corresponds to sp3hybridization So , the structure is tetrahedral.But out of the 6 electronson S only two are occupied by two Cl atoms,2 lone pairs areremained on O atom which causes lone pair - lone pair repulsions.sothe the geometry of the molecule is bent (or) V- shape. c) PF3 H = ( 5 + 3 -0-0 ) / 2     = 4 -------Corresponds to sp3hybridization So , the structure is tetrahedral.But out of the 5electrons on P only three are occupied by three F atoms,one lone pair is remained on P atomwhich causes lone pair - bond pair repulsions.so the thegeometry of the molecule is pyramidal in shape. H = ( 5 + 3 -0-0 ) / 2     = 4 -------Corresponds to sp3hybridization So , the structure is tetrahedral.But out of the 5electrons on P only three are occupied by three F atoms,one lone pair is remained on P atomwhich causes lone pair - bond pair repulsions.so the thegeometry of the molecule is pyramidal in shape.

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