Note AcademyNote Academy
Start

Chemistry · May / June 2020 · Paper 11 · Question 29

5070Corrosion of metals

Which diagram correctly shows the conditions necessary for the rusting of iron and also the metal that can be used to prevent rusting by sacrificial protection?

  1. AO2 only, copper, iron
  2. BO2 only, magnesium, iron
  3. CO2 + H2O, copper, iron
  4. DO2 + H2O, magnesium, iron

As printed in the paper

Show the answer

Correct answer: D. O2 + H2O, magnesium, iron

Sit this whole paper →More on Corrosion of metals

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.

Also set in