DP Chemistry (first assessment 2025)
Question 21M.1A.HL.TZ1.31
Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.1A.HL.TZ1.31 |
Level | HL | Paper | 1A | Time zone | TZ1 |
Command term | Deduce | Question number | 31 | Adapted from | N/A |
31.
[Maximum mark: 1]
21M.1A.HL.TZ1.31
What are the products when concentrated aqueous copper (II) chloride is electrolysed using platinum electrodes?
[1]
Markscheme
C
Syllabus sections
Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.2—Electron transfer reactions » Reactivity 3.2.15—During electrolysis of aqueous solutions, competing reactions can occur at the anode and cathode, including the oxidation and reduction of water. Deduce from standard electrode potentials the products of the electrolysis of aqueous solutions.