OnlineCBT
Chemistry · EQUILIBRIUM
हिन्दीConsider the following statements about acid-base species: (A) \( \text{H}_2\text{O} \) acts as a Bronsted base when reacting with \( \text{HCl} \). (B) \( \text{HCO}_3^- \) can act as both a Bronsted acid and a Bronsted base. (C) \( \text{BF}_3 \) acts as a Lewis acid by accepting an electron pair. (D) The conjugate base of \( \text{HSO}_4^- \) is \( \text{H}_2\text{SO}_4 \). How many of the above statements are correct?
Correct answer · Option 3
Only three
Explanation
Statements (A), (B), and (C) are correct. Statement (D) is incorrect because \( \text{H}_2\text{SO}_4 \) is the conjugate acid of \( \text{HSO}_4^- \), whereas its conjugate base is \( \text{SO}_4^{2-} \). Hence, only three statements are correct.
