DP Chemistry (last assessment 2024)

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Question 22M.2.hl.TZ1.5b(iii)

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.2.hl.TZ1.5b(iii)
Level hl Paper 2 Time zone TZ1
Command term Deduce Question number b(iii) Adapted from N/A
b(iii).
[Maximum mark: 1]
22M.2.hl.TZ1.5b(iii)

Organomagnesium compounds can react with carbonyl compounds. One overall equation is:

Compound B can also be prepared by reacting an alkene with water.

(b(iii))

Deduce the structural formula of the repeating unit of the polymer formed from this alkene.

[1]

Markscheme

Do not penalize missing brackets or n.

Do not award mark if continuation bonds are not shown.

Examiners report

Mediocre performance; deducing structural formula of repeating unit of the polymer was challenging in which continuation bonds were sometimes missing, or structure included a double bond or one of the CH3 group was missing.

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