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[Post New]8 Feb 2008 10:42:25 IST
    Subject: Re:Hydrogen Bonding Question! Lets see who knows!!
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tarinbansal (3898)

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Olaaa!! Perrrfect answer. 668  [947 rates]
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Hey,
I think I hav got the answer.
In HF, the F is sp3 hybridised, it means it has tetrahedral shape and its lone pairs are arranged in space as shown in figure. Now H makes bonds where it gets maximum electron density, that is, at the lone pairs of F.
And as the lone pairs are enclined at 109.5 degrees, the H-bond gets enclined at an angle.

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