KCET2020ChemistryGeneral Organic Chemistry
Which of the following is the strongest base?
Options
- ACH ₃ COO ⁻
- BCl ⁻
- COH ⁻
- DCH ₃ O ⁻
Correct answer
D. CH ₃ O ⁻
Step-by-step solution
We know, an anion is strongest base, if its conjugate acid is weakest. Here, CH ₃ COO ⁻ will have conjugate acid CH ₃ COOH . Cl ⁻ will have conjugate acid HCl. OH ⁻ will have conjugate acid HOH. CH ₃ O ⁻ will have conjugate acid CH ₃ OH . Since, out of above four, CH ₃ OH will be the weakest acid and hence, CH ₃ O ⁻ will be strongest base.