DP Chemistry (first assessment 2025)

Test builder »

Question 22M.1A.SL.TZ1.27

Date	May 2022	Marks available	[Maximum mark: 1]	Reference code	22M.1A.SL.TZ1.27
Level	SL	Paper	1A	Time zone	TZ1
Command term	State	Question number	27	Adapted from	N/A

27.

[Maximum mark: 1]

22M.1A.SL.TZ1.27

What is produced when chlorobutane is treated with aqueous sodium hydroxide solution?

A. butane

B. butanoic acid

C. butanal

D. butan-1-ol

[1]

Markscheme

D

Syllabus sections

Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.4—Electron-pair sharing reactions » Reactivity 3.4.2—In a nucleophilic substitution reaction, a nucleophile donates an electron pair to form a new bond, as another bond breaks producing a leaving group. Deduce equations with descriptions and explanations of the movement of electron pairs in nucleophilic substitution reactions.