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Anushka Gupta posted an Question
June 26, 2020 • 23:33 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Main difference in geometry and shape, structure

main difference between geometry and shape, structure of a molecule

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    Dinesh khalmaniya 1 Best Answer

    Geometry of a molecule is the arrangement of lone pair + bond pair around the central atom and corresponds to the coordination number of the molecule while shape is the molecule structure excluding the lone pair on the central atom. Shape does not count lone pair. For example : Methane CH4 , Ammonia NH3 and H2O all have CN=4 and have tetrahedral geometry but all of them have different shapes. Since there is no lone pair on carbon in methane it's geometry and shape is equivalent but NH3 has pyramidal shape and Water molecule has Bent or V shape.

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    Priyanshu kumar

    Due to presence of lone pairs and repulsion arises between lone pair -lone pair, lone pair-bond pair, the geometry ,shapes and structure changes...it tends to minimise repulsion so bond angles changes when lone pairs is present

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    hope it helps🙏

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