MCQ
Which of the following compound has least $pK_a$ value
- ✓

- B

- C

- D






Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
${image}$
| Expt. No. | $(A)$ | $(B)$ | Initial Rate |
| $1$ | $0.012$ | $0.035$ | $0.10$ |
| $2$ | $0.024$ | $0.070$ | $0.80$ |
| $3$ |
$0.024$ |
$0.035$ | $0.10$ |
| $4$ | $0.012$ | $0.070$ | $0.80$ |