DP Chemistry (last assessment 2024)

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Question 22M.2.sl.TZ2.c

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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”.