Question

Which of the following acids is a strong acid?

• A. \( \text{H}_2\text{SO}_4 \)
• B. \( \text{CH}_3\text{COOH} \)
• C. \( \text{H}_2\text{CO}_3 \)
• D. \( \text{HNO}_3 \)

Hint:

Remember: Strong acids completely dissociate in water. Common strong acids include \( \text{HNO}_3 \), \( \text{H}_2\text{SO}_4 \), and \( \text{HCl} \).

Answer 1

The Correct Option is D

Step 1: Define strong acids A strong acid is one that completely dissociates in water to release \( \text{H}^+ \) ions. Step 2: Identify the strong acid from the options - \( \text{H}_2\text{SO}_4 \) (sulfuric acid) is a strong acid. - \( \text{CH}_3\text{COOH} \) (acetic acid) is a weak acid. - \( \text{H}_2\text{CO}_3 \) (carbonic acid) is a weak acid. - \( \text{HNO}_3 \) (nitric acid) is a strong acid. Answer: Therefore, \( \text{HNO}_3 \) is a strong acid. So, the correct answer is option (4).