DP Chemistry (last assessment 2024)
Question 18M.2.sl.TZ1.2d.ii
| Date | May 2018 | Marks available | [Maximum mark: 1] | Reference code | 18M.2.sl.TZ1.2d.ii |
| Level | sl | Paper | 2 | Time zone | TZ1 |
| Command term | Outline | Question number | d.ii | Adapted from | N/A |
d.ii.
[Maximum mark: 1]
18M.2.sl.TZ1.2d.ii
Calcium carbide, CaC2, is an ionic solid.
(d.ii)
Outline why solid calcium is a good conductor of electricity.
[1]
Markscheme
delocalized/mobile electrons «free to move»
[1 mark]
