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Date	November 2014	Marks available	1	Reference code	14N.1.sl.TZ0.21
Level	SL	Paper	1	Time zone	TZ0
Command term		Question number	21	Adapted from	N/A

Question

Which definition of a base is correct?

A. A Lewis base accepts a proton.

B. A Brønsted-Lowry base accepts an electron pair.

C. A Brønsted-Lowry base donates an electron pair.

D. A Lewis base donates an electron pair.

Markscheme

D

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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