Skip to content

Course home

Sign up

6.1 Improving processes and products

EasyMediumHard
12345678910111213141516171819202122
Question 18
F

A steel bucket is galvanised (coated with zinc).

The zinc coating is scratched, but the steel underneath does not rust.

Why does the steel not rust?

[1]
A

Zinc is less reactive than iron, so the zinc does not corrode.

B

Zinc rusts faster than iron, so a layer of rust covers the scratch.

C

Zinc is less reactive than iron, so the iron is protected from water.

D

Zinc is more reactive than iron, so the zinc corrodes instead of the iron.

Markscheme

6.1 Improving processes and products Questions

  1. GCSE
  2. /Chemistry
  3. /6.1 Improving processes and products

61 exam-style questions on OCR GCSE Chemistry 6.1 Improving processes and products, covering 6.1.1 Extracting metals industrially and by electrolysis, 6.1.2 Life cycle assessment and recycling, 6.1.3 Biological methods of metal extraction, 6.1.4 The Haber process and the production of fertilisers, 6.1.5 Alloys and their uses, 6.1.6 Corrosion and its prevention, 6.1.7 Comparing and selecting materials, and 6.1.8 Industrial conditions, rate and position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank