A) \[{{H}_{3}}P{{O}_{3}}\]is stronger acid than \[{{H}_{2}}S{{O}_{3}}\]
B) In aqueous medium, HF is a stronger acid than HCI
C) \[HCl{{O}_{4}}\]is a weaker acid than \[HCl{{O}_{3}}\]
D) \[HN{{O}_{3}}\] is a stronger acid than \[HN{{O}_{2}}\]
Correct Answer: D
Solution :
Conjugate base of \[\text{HN}{{\text{O}}_{\text{3}}}\]is resonance stablised than that of \[\text{HN}{{\text{O}}_{2}}.\]Hence, \[\text{HN}{{\text{O}}_{3}}\]is stronger acid than \[\text{HN}{{\text{O}}_{2}}.\]
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