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Well, SeO2 is a bent molecule. It has 2 lone pairs on the Se central atom, giving it bond angles of 109.5 degrees. Because it's bent, it is polar. We also know (hopefully) that all polar molecules exhibit Dipole-Dipole IMFs. And all molecules exhibit London Dispersion Forces (LDFs). Because it doesn't have any Hydrogen atoms, we can rule out Hydrogen Bonding. So it's just Dipole-dipole and LDFs.

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12y ago
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10y ago

London dispersion forces, instantaneous dipole- dipole interaction. CSe2 is non polar. The bonds are expected to be non-polar as the electronegativities for Se and C are identical. As the molecule is linear like CO2 and CS2 any bond dipole would in any event cancel.

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Q: What type of intermolecular forces exist in Seo2?
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