DP Biology (first assessment 2025)

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Question 23M.1B.SL.TZ1.a

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1B.SL.TZ1.a
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.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

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