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प्रश्न
Give Lewis's definition of acids and bases.
उत्तर
A Lewis acid is defined as a substance (atom, ion or molecule) that is capable of accepting a pair of electrons.
Examples: Ag+, H+, AlCl3.
A Lewis base is defined as a substance (atom, ion or molecule) that is capable of donating a pair of electron.
Examples: NH3, Cl–
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| Species | Conjugate acid |
| (i) \[\ce{NH3}\] | (a) \[\ce{CO^{2-}3}\] |
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| iii) \[\ce{H2O}\] | (c) \[\ce{H3O+}\] |
| (iv) \[\ce{HSO^{-}4}\] | (d) \[\ce{H2SO4}\] |
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