DP Chemistry (first assessment 2025)

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Question 23M.2.HL.TZ1.20a

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.HL.TZ1.20a
Level HL Paper 2 Time zone TZ1
Command term Describe Question number a Adapted from N/A
a.
[Maximum mark: 2]
23M.2.HL.TZ1.20a
(a)

Describe which cancers are treated by TAT and BNCT and the particles used in each treatment.

 

TAT: 

 

 


BNCT:

 

 

 

[2]

Markscheme

TAT:
spread to multiple sites AND alpha particles
OR
«cancers of the» blood/leukaemia AND alpha particles ✓

BNCT:
head/neck/brain «cancers» AND neutrons ✓

 

Award [1] for 2 correct cancers or 2 correct particles.