DP Chemistry (last assessment 2024)
Question 19M.3.sl.TZ1.6b
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.sl.TZ1.6b |
| Level | sl | Paper | 3 | Time zone | TZ1 |
| Command term | Suggest | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
19M.3.sl.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 answerssuch as “medicine” or “defence”.
Examiners report
Only a few students gained this mark and they usually gave the use of nanotubes for a reinforcing.
