Question

Assertion (A): $HN{O}_3$ is stronger acid than $HN{O}_2$
Reason(R) : Both are monobasic acids

The correct answer is :

• A. Both (A) and (R) are true and (R) is the correct explanation of (A)
• B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
• C. (A) is true and (R) is false
• D. (A) is false but (R) is true

Answer 1

Answer: (B)

Both (A) and (R) are true and (R) is not the correct explanation of (A)

$\stackrel{+5}{HN{O}_3}\stackrel{+3}{HN{O}_2}$
N is in higher oxidation state in $HN{O}_3$ $\therefore$ it is stronger acid
Acid Strength $\alpha$ Oxidation State