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Methods of separating and purifying substances

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Question 45

Fresh water from reservoirs and rivers must undergo treatment to make it potable (safe to drink).

Three of the main processes involved in treating fresh water are:

  • filtration
  • sedimentation
  • sterilisation

Place these three processes in the correct order in which they are carried out from start to finish.

  • Stage 1 (First): __________
  • Stage 2 (Second): __________
  • Stage 3 (Third): __________
[2]

Methods of separating and purifying substances Questions

  1. GCSE
  2. /Chemistry
  3. /Methods of separating and purifying substances