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Question
Which of the following can act as Lowry – Bronsted acid as well as base?
Options
HCl
\[\ce{SO^{2-}_4}\]
\[\ce{HPO^{2-}_4}\]
Br−
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Solution
\[\ce{HPO^{2-}_4}\]
Explanation:
\[\ce{HPO^{2-}_4}\] can have the ability to accept a proton to form \[\ce{H2PO^{-}_4}\].
It can also have the ability to donate a proton to form \[\ce{PO^{-3}_4}\]
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