DP Chemistry (last assessment 2024)
Question 22M.2.sl.TZ2.c
Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.sl.TZ2.c |
Level | sl | Paper | 2 | Time zone | TZ2 |
Command term | Identify, Justify | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 1]
22M.2.sl.TZ2.c
Lithium reacts with water to form an alkaline solution.
The reaction of lithium with water is a redox reaction. Identify the oxidizing agent in the reaction giving a reason.
[1]
Markscheme
H2O AND hydrogen gains electrons «to form H2»
OR
H2O AND H oxidation state changed from +1 to 0 ✔
Accept “H2O AND H/H2O is reduced”.
