DP Chemistry (last assessment 2024)
Question 19M.3.hl.TZ1.6b
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.hl.TZ1.6b |
| Level | hl | Paper | 3 | Time zone | TZ1 |
| Command term | Suggest | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
19M.3.hl.TZ1.6b
Nanotechnology has allowed the manipulation of materials on the atomic level.
(b)
Suggest one application for carbon nanotubes.
[1]
Markscheme
Any one of:
3D electrodes [✔]
catalysts [✔]
biosensors [✔]
molecular stents [✔]
body armour [✔]
synthetic muscles [✔]
micro transistors/circuitry/capacitors/electrodes [✔]
reinforcing phase in a matrix/composite material «such as concrete» [✔]
micro antenna [✔]
stealth technology [✔]
water/air filtration [✔]
solar cells [✔]
tennis racquets [✔]
microelectronic circuits [✔]
Note: Do not accept just general answers such as “medicine” or “defence”.
Examiners report
There were some vague responses for applications of carbon nanotubes when specific details were needed to score the mark in (b).
