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Home  >>  JEEMAIN and AIPMT  >>  Chemistry  >>  Equilibrium
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Which of the following can act both as a Bronsted acid and a Bronsted base?

(a) $O^{2-}$

(b) $HCl$

(c) $HSO^-_4$

(d) $Na_2CO_3$

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1 Answer

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  • Acid is a substance which is capable of donating a proton.
  • Base is a substance which is capable of accepting a proton.
Answer: $HSO_4^-$
$O^{2-} \overset{-H^+}{\longleftarrow} OH^- \therefore$ Bronsted Base
$Cl^- \overset{-H^+}{\longleftarrow} HCl \therefore$ Bronsted Acid
$SO_4^{-2} \overset{-H^+}{\longleftarrow} HSO^-_4 \overset{-H^+}{\longleftarrow} H_2SO_4 \therefore$ Both Bronsted Base and Bronsted Acid
$Na_2CO_3 \overset{-H^+}{\longleftarrow} NaHCO_3 \therefore$ Bronsted Base


answered Nov 23, 2013 by mosymeow_1

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