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Date	May 2017	Marks available	1	Reference code	17M.1.sl.TZ1.21
Level	SL	Paper	1	Time zone	TZ1
Command term	Deduce	Question number	21	Adapted from	N/A

Question

What is the order of decreasing reactivity of the metals (most reactive first)?

Zn(s) + Sn²⁺(aq) → Zn²⁺(aq) + Sn(s)
Cu(s) + Zn²⁺(aq) → No Reaction
Sn(s) + Cu²⁺(aq) → Sn²⁺(aq) + Cu(s)
Ag(s) + Cu²⁺(aq) → No Reaction

A. Zn > Cu > Sn > Ag

B. Sn > Zn > Ag > Cu

C. Ag > Cu > Zn > Sn

D. Zn > Sn > Cu > Ag

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Syllabus sections

Core » Topic 9: Redox processes » 9.1 Oxidation and reduction

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