DP Chemistry (last assessment 2024)
Question 19N.3.hl.TZ0.4a(i)
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.hl.TZ0.4a(i) |
| Level | hl | Paper | 3 | Time zone | TZ0 |
| Command term | Outline | Question number | a(i) | Adapted from | N/A |
a(i).
[Maximum mark: 1]
19N.3.hl.TZ0.4a(i)
Superconductors have no resistance below a critical temperature.
(a(i))
Outline how resistance to electric currents occurs in metals.
[1]
Markscheme
electrons collide with cations/positive ions ✔
