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Which of the following is the strongest acid? A H 3 ​ P O 4 ​ B H 2 ​ S O 4 ​ C H N O 2 ​ D C H 3 ​ C O O H

Which of the following is the strongest acid?

A

H3​PO4​

B

H2​SO4​

C

HNO2​

D

CH3​COOH

 
 
 

Grade:12

1 Answers

Omveer Singh
askIITians Faculty 52 Points
3 years ago

The more number of H+ ions an acid can release the stronger is the acid. So from the given acids, H3​PO4​ can release 3H+ ions. But H2​SO4​ is stronger than H3​PO4​ as in solution H2​SO4​ dissociates more than H3​PO4​ and we know strong acids dissociates completely in water whereas H3​PO4​ partially dissociates. Hence H2​SO4​ is the strongest acid.

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