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How does Lewis theory explain the acidic...

How does Lewis theory explain the acidic character of `CO_(2)`?

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According to Lewis concept. `CO_(2)` is Lewis acid because carbon atom is attached to more elecronegative oxygen atoms on both sides by double bonds . It can easily accept an electron pair from the Lewis base such as `OH^(-)` ion.
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Statement-1: The decreasing order of acidic character of CO_(2),N_(2)O_(5),SiO_(2) and SO_(3) is SO_(3) gt N_(2)O_(5) gt CO_(2) gt SiO_(2) . Statement-2: As electronegativity difference (E-O) decreases, acidic character of the oxide increases.

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