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Date	November 2010	Marks available	1	Reference code	10N.1.sl.TZ0.3
Level	SL	Paper	1	Time zone	TZ0
Command term		Question number	3	Adapted from	N/A

Question

Equal masses of the metals Na, Mg, Ca and Ag are added to separate samples of excess HCl (aq). Which metal produces the greatest total volume of H₂(g)?

A. Na

B. Mg

C. Ca

D. Ag

Markscheme

Examiners report

One G2 comment stated that this was a challenging question for SL candidates. In fact this was the second hardest question on the entire paper and only 20% of candidates gave B. (i.e. Mg) as the correct answer.

Syllabus sections

Core » Topic 1: Stoichiometric relationships » 1.3 Reacting masses and volumes

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