DP Chemistry (last assessment 2024)
Question 19N.2.hl.TZ0.6a(iv)
| Date | November 2019 | Marks available | [Maximum mark: 2] | Reference code | 19N.2.hl.TZ0.6a(iv) |
| Level | hl | Paper | 2 | Time zone | TZ0 |
| Command term | Explain | Question number | a(iv) | Adapted from | N/A |
a(iv).
[Maximum mark: 2]
19N.2.hl.TZ0.6a(iv)
Copper forms two chlorides, copper(I) chloride and copper(II) chloride.
(a(iv))
Explain how the catalyst increases the rate of the reaction.
[2]
Markscheme
«catalyst provides an» alternative pathway ✔
«with» lower Ea
OR
higher proportion of/more particles with «kinetic» E ≥ Ea(cat) «than Ea» ✔
