DP Chemistry (first assessment 2025)
Question 21M.1A.SL.TZ1.21
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.1A.SL.TZ1.21 |
| Level | SL | Paper | 1A | Time zone | TZ1 |
| Command term | Deduce | Question number | 21 | Adapted from | N/A |
21.
[Maximum mark: 1]
21M.1A.SL.TZ1.21
A student performed displacement reactions using metals W and X and solutions of salts of metals W, X, Y and Z. The results are summarized in the table.
Which of the four metals is most reactive?
A. W
B. X
C. Y
D. Z
[1]
Markscheme
D
Syllabus sections
Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.2—Electron transfer reactions » Reactivity 3.2.3—The relative ease of oxidation and reduction of an element in a group can be predicted from its position in the periodic table. The reactions between metals and aqueous metal ions demonstrate the relative ease of oxidation of different metals. Predict the relative ease of oxidation of metals. Predict the relative ease of reduction of halogens. Interpret data regarding metal and metal ion reactions.