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Predict the shapes of the following molecules using VSEPR theory?
(i) BeCl2(ii) SiCl4

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Sp2 Hybridization -linear geometry Sp3 Hybridization- Tetrahedral geometry
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I¡) central atom is Be having 2 valance electron, each Cl atom contribute one electron each . So total 4 electron arround central Be atom ,means 2 electron pair. so these 2 electron pair arrange themselve linearly. there are 2 electron pair and two of them is bond pair. So according to VSEPR theory...
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I¡) central atom is Be having  2 valance electron, each Cl atom contribute one electron each . So total 4 electron arround central Be atom ,means 2 electron pair. so these 2 electron pair arrange themselve linearly. there are 2 electron pair and two of them is bond pair. So according to VSEPR theory shape of the molecule is linear

(¡¡)SiCl4 molecule has total (4+4)= 8 electrons. i.e; 4 electron pairs so it is having a tetrahedral arrangement. there is 4 electron pair and all are bond pair .So according to VSEPR theory it is tetrahedral shape.

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PGT CHEMISTRY 12 year experience teaching XI-XII Students

BeCl2 linear SiCl4 Tetrahedral
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PGT CHEMISTRY 12 year experience teaching XI-XII Students

BeCl2 Linear SiCl4 Tetrahedral
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