Chemistry · Oct / Nov 2024 · Paper 12 · Question 30
A metal ore contains an oxide, MO. Metal M forms coloured compounds. When a piece of iron is placed into a solution containing aqueous M2+ ions, M is displaced. Which row is correct?
- Ahigh; electrolysis only
- Bhigh; electrolysis or heating with carbon
- Chigh; heating with carbon only
- Dlow; heating with carbon only
As printed in the paper
Show the answer
Correct answer: B. high; electrolysis or heating with carbon
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.