Quelpr
1 markMetals, Non-Metals and Corrosion

CSEC Integrated Science · May/June 2013 · Paper 2 · Question 2(b)(vii)

An experiment investigates conditions for rusting using three boiling tubes: A (nail, sealed with stopper, anhydrous calcium chloride), B (nail exposed to air), and C (nail in boiled water sealed with paraffin).

State ONE method that can be used to prevent rusting.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 2(a)Distinguish between corrosion and rusting.[2 marks]
  2. 2(b)(i)In which boiling tube will the nail show the MOST rust after one month?[1 mark]
  3. 2(b)(ii)Explain your answer in (b)(i).[2 marks]
  4. 2(b)(iii)State the purpose of the anhydrous calcium chloride in Boiling Tube A.[1 mark]
  5. 2(b)(iv)Identify which boiling tube is set up as a control.[1 mark]
  6. 2(b)(v)State whether rusting would occur if stainless steel nails are used instead of iron nails, and give a reason.[2 marks]
  7. 2(b)(vi)Based on your answer in (b)(v), suggest ONE use of stainless steel in the home.[1 mark]
  8. 2(c)Outline TWO advantages and TWO disadvantages of using plastic taps instead of brass taps.[4 marks]

More practice: the rest of this paper · more Metals, Non-Metals and Corrosion questions · all CSEC Integrated Science past papers