Skip to main content
A-LevelChemistryElectrochemistry9701/12 · Feb/Mar 2023 · Q61 Mark

The ore psilomelane may be considered to have the general formula Ba(Mnˣ⁺)(Mnʸ⁺)₈O₁₆(OH)₄. In this general formula, x+ and y+ are the two different oxidation states of manganese in psilomelane. What could be the values of x and y? [Table with columns "x", "y"]

A2, 4
B6, 4
C6, 3
D7, 3

✓ Correct answer

A: 2, 4

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Electrochemistry and see which topics are most likely to come up next.

Sign up free →

About this question

Topic
Electrochemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Feb/Mar 2023 Paper 1 Variant 2, question 6.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Chemistry questions

© 2026 Oracle Prep