Structure of Water
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H2O molecule has 8 electrons ( 6 from O2 & 1 from each H)
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Two covalent bonds (one electron from O2 and one from H)
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H-O-H angle is 105°, tetrahedron shape due to the greater repulsion between
the non-bonding electron pairs on the O2 atom which pushes the H atoms
closer together.
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O2 is more electronegative than H. So H atoms has regions of +ve charge &
O2 has regions of –ve charge.
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Polar molecule