DP Biology (first assessment 2025)
Question 23M.1B.SL.TZ1.1a
Date | May 2023 | Marks available | [Maximum mark: 1] | Reference code | 23M.1B.SL.TZ1.1a |
Level | SL | Paper | 1B | Time zone | TZ1 |
Command term | State | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 1]
23M.1B.SL.TZ1.1a
(a)
State the purpose of lime water in flask B.
[1]
Markscheme
to check there is no carbon dioxide (left in the air)/show any carbon dioxide present;
Do not accept absorb carbon dioxide
