JEE Main Chemistry question
The increasing order of basic strength of Cl⁻, CO₃²⁻, CH₃COO⁻, OH⁻, F⁻ is:
Answer: (A)
Solution
Basicity is inverse of parent-acid strength: HCl(strong) < HF(pKa≈3.2) < CH₃COOH(pKa≈4.74) < HCO₃⁻(pKa≈10.3) < H₂O(pKa≈15.7).