DP Chemistry (last assessment 2024)

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Question 19M.3.hl.TZ1.b

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.3.hl.TZ1.b
Level hl Paper 3 Time zone TZ1
Command term Suggest Question number b Adapted from N/A
b.
[Maximum mark: 1]
19M.3.hl.TZ1.b

This question is about antiviral drugs.

Suggest a reason for using a phosphate salt of oseltamivir in oral tablets.

[1]

Markscheme

more soluble «in water»  [✔]

Examiners report

Many candidates referred correctly to increased solubility of the salt in water while some mentioned bioavailability but did not realize that a salt will also form in the stomach.

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