Chemistry · Oct / Nov 2017 · Paper 11 · Question 29
Which metal is attached to underground pipes made of iron, to provide sacrificial protection from corrosion?
- AAg
- BCu
- CMg
- DPb
As printed in the paper
Show the answer
Correct answer: C. Mg
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.

