DP Chemistry (last assessment 2024)

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Question 17N.1.sl.TZ0.22

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.1.sl.TZ0.22
Level sl Paper 1 Time zone TZ0
Command term Question number 22 Adapted from N/A
22.
[Maximum mark: 1]
17N.1.sl.TZ0.22

Which of the following is a redox reaction?

A. 3Mg (s) + 2AlCl3 (aq) → 2Al (s) + 3MgCl2 (aq)

B. SiO2 (s) + 2NaOH (aq) → Na2SiO3 (aq) + H2O (l)

C. KCl (aq) + AgNO3 (aq) → AgCl (s) + KNO3 (aq)

D. 2NaHCO3 (aq) → Na2CO3 (aq) + CO2 (g) + H2O (l)

[1]

Markscheme

A

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