In a molecule, central atom 'A' hassp^(3) dhybridisationand is surrounded by some sigmabond pairs and some lone pairs . For this molecule, three structures are possible . In each structure electron pair repulasion at90^(@)are given below : Structure 1 : lone pair -lone pair = 0, lone pair-bond pair = 6, bond pair- bond pair = 0 Structure 1 : lone pair -lone pair = 1, lone pair-bond pair = 3, bond pair- bond pair = 2 Structure 1 : lone pair -lone pair = 0, lone pair-bond pair = 4, bond pair- bond pair = 2which of these structures has maximum stabililty and why ?

In a molecule, central atom 'A' hassp^(3) dhybridisationand is surroun

1.	In a molecule, central atom 'A' hassp^(3) dhybridisationand is surrounded by some sigmabond pairs and some lone pairs . For this molecule, three structures are possible . In each structure electron pair repulasion at90^(@)are given below : Structure 1 : lone pair -lone pair = 0, lone pair-bond pair = 6, bond pair- bond pair = 0 Structure 1 : lone pair -lone pair = 1, lone pair-bond pair = 3, bond pair- bond pair = 2 Structure 1 : lone pair -lone pair = 0, lone pair-bond pair = 4, bond pair- bond pair = 2which of these structures has maximum stabililty and why ?
Answer» Solution :`CIF_(3)`molecule and explanaion and explanaion in the footnote on. COMPARED with structure 1, structure 3 has less LP - lp repulsions. Compared with structure 2, structure 3 has no lp - lp repulsions. Thus , structure 3 has less repulsions than structure 1 and structure 2 and hence is most stable .