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Date	November 2012	Marks available	1	Reference code	12N.1.sl.TZ0.21
Level	SL	Paper	1	Time zone	TZ0
Command term		Question number	21	Adapted from	N/A

Question

Which substance can act as a Lewis acid but not as a Brønsted–Lowry acid?

A. HCl

B. CH₃COOH

C. BF₃

D. CF₃COOH

Markscheme

C

Examiners report

[N/A]

Syllabus sections

Additional higher level (AHL) » Topic 18: Acids and bases » 18.1 Lewis acids and bases

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