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NCERT Class XI Chemistry Equilibrium Solutions

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Question : 39 of 73
Marks: +1, -0
The species : H2O,HCO3−,HSO4−\mathrm{H_2O}, \mathrm{HCO_3^{-}} , \mathrm{HSO_4^{-}} and NH3\mathrm{NH_3} can act both as Bronsted acids and bases. For each case give the corresponding conjugate acid and base.
Solution:  
Species Conjugate acid Conjugate base
H2O\mathrm{H_2O} H3O+\mathrm{H_3O^{+}} OH−\mathrm{OH^{-}}
HCO3−\mathrm{HCO_3^{-}} H2CO3\mathrm{H_2CO_3}CO32−\mathrm{CO_3^{2-}}
HSO4−\mathrm{HSO_4^{-}}H2SO4\mathrm{H_2SO_4} SO42−\mathrm{SO_4^{2-}}
NH3\mathrm{NH_3}NH4+\mathrm{NH_4^{+}}NH2−\mathrm{NH_2^{-}}
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