Quelpr
4 marksPolymers

CSEC Chemistry · January 2010 · Paper 2 · Question 6(c)(ii)

Fibres are abundant in nature and produced by both plants and animals.

Suggest TWO chemical tests which may be used to distinguish an animal fibre from a plant fibre. Include the expected observations.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 6(a)(i)Describe the chemical composition of clay.[1 mark]
  2. 6(a)(ii)Suggest a possible source of 'glass' in fired clay.[1 mark]
  3. 6(a)(iii)Relate this use of clay to ONE of its properties.[2 marks]
  4. 6(b)From your knowledge of the composition of cement and its use in making concrete, explain the reason for the mason's advice.[3 marks]
  5. 6(c)(i)Name ONE plant fibre and ONE animal fibre used in making fabric, and state the chemical composition of plant fibres and animal fibres.[4 marks]

More practice: the rest of this paper · more Polymers questions · all CSEC Chemistry past papers