DP Chemistry (last assessment 2024)
Question 18N.3.hl.TZ0.12b.ii
| Date | November 2018 | Marks available | [Maximum mark: 1] | Reference code | 18N.3.hl.TZ0.12b.ii |
| Level | hl | Paper | 3 | Time zone | TZ0 |
| Command term | Deduce | Question number | b.ii | Adapted from | N/A |
b.ii.
[Maximum mark: 1]
18N.3.hl.TZ0.12b.ii
The Sun’s energy is produced by the fusion of hydrogen nuclei.
Uranium-238 produces plutonium-239, which is used as fuel in breeder reactors.
(b.ii)
Deduce the fission reaction when 239Pu is bombarded with a neutron to produce 133Xe and 103Zr.
[1]
Markscheme
239Pu + 1n → 133Xe + 103Zr + 41n ✔
Accept equation with correct atomic numbers included.
Accept notation for neutrons of “n”.
Accept a correctly described equation in words.
