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6.1 Improving processes and products

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Question 17
F

A student places identical iron nails in four different test tubes and leaves them for one week.

Which nail rusts the fastest?

[1]
A

A nail in salty water, with the tube open to the air

B

A nail in dry air, with a drying agent in the tube

C

A nail in boiled water, with a layer of oil on top

D

A nail in tap water, with the tube open to the air

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.

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