Which one is the weakest acid - Vidyadip

MCQ

Which one is the weakest acid

✓
$HN{O_3}$
B
$HCl{O_4}$
C
${H_2}S{O_4}$
D
$HBr$

✓

Answer

Correct option: A.

$HN{O_3}$

(a)$\mathop {HCl{O_4} > {H_2}S{O_4} > HBr > HN{O_3}}\limits_{{\rm{Acidic\, character \,decreases }}} $.

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