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Question

Assertion : HCO3 can act as a Bronsted acid or a Bronsted base.
Reason : HCO3 can donate a proton to form CO23 or accept a proton to form H2CO3.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct and Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect but Reason is correct
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E
Both Assertion and Reason are incorrect
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
A Bronsted acid donates a proton and a Bronsted base accepts a proton.
HCO3+H+H2CO3 Bronsted base
HCO3CO23+H+ Bronsted acid
Since, HCO3 can donate a proton to form CO23 and can accept a proton to form H2CO3, it can act as a Bronsted acid as well as a Bronsted base. Hence both assertion and reason are correct and reason is the correct explanation for assertion.

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