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Grade 10Physical Chemistry

The molecules of SO2 & H20 have dipole moment but CO2 has no dipole moment. Thus, we refer to SO2, & H20 as polar molecules and CO2 as a non-polar molecule. The polarity of molecules is important in studying various properties like structure & reactivity, solvation, acidity-basicity etc. We ask you to suggest whyCO2 isanon-polarmolecule.(Rememberallthe3moleculesarecovalently bonded)

Tanmay Bhuskute

10 Years agoGrade 10

1 Answer

Vikas TU

9 Years ago

The dipole moment is strictly zero for sp, sp2, sp3 sp3d sp3d2 and sq. planer geometery.

For others it is non – zero due to non symmetry there is some replusion or attraction due to lone pairs existenxe in the molecule.

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