DP Chemistry (last assessment 2024)
Question 21N.2.sl.TZ0.5d
| Date | November 2021 | Marks available | [Maximum mark: 1] | Reference code | 21N.2.sl.TZ0.5d |
| Level | sl | Paper | 2 | Time zone | TZ0 |
| Command term | Outline | Question number | d | Adapted from | N/A |
d.
[Maximum mark: 1]
21N.2.sl.TZ0.5d
Phosphoric acid, H3PO4, can undergo stepwise neutralization, forming amphiprotic species.
(d)
Outline the reason that sodium hydroxide is considered a Brønsted–Lowry base.
[1]
Markscheme
«OH− is a» proton acceptor ✔
