Quelpr
2 marksAcid/Base Equilibria

CAPE Chemistry Unit 1 · 2005 · Paper 1 · Question 9(b)(ii)

Plant material is used as a base source for drug development and natural products. Extraction must minimize damage and allow easy collection.

Give TWO features of the extraction method suggested in (b)(i) that allow the stated objectives to be achieved.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 9(a)(i)Suggest a type of solvent that could be used to isolate an organic product from an aqueous reaction mixture.[1 mark]
  2. 9(a)(ii)Describe TWO properties the solvent should have for this extraction method to work.[2 marks]
  3. 9(a)(iii)Briefly explain ONE principle on which solvent extraction is based.[2 marks]
  4. 9(b)(i)Suggest a method that would be suitable to extract natural organic compounds from plant material.[1 mark]
  5. 9(b)(iii)Explain why the features mentioned in (b)(ii) are essential.[2 marks]

More practice: the rest of this paper · more Acid/Base Equilibria questions · all CAPE Chemistry Unit 1 past papers