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4 marksNon-Metals

CSEC Chemistry · May/June 2015 · Paper 2 · Question 6(a)(i)

Sally and Ann live on opposite sides of an island. When Sally visits Ann, she observes that the soap takes longer to lather and produces more scum.

Explain to Sally why the soap may be producing more scum at Ann's house than at her house.

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Other parts of this question

  1. 6(a)(ii)Do you expect that Sally would get the same result if she uses soapless detergent? State a reason for your answer.[2 marks]
  2. 6(b)Outline the harmful effect that second generation detergents had on the environment.[3 marks]
  3. 6(c)(i)What is meant by the term 'Green Chemistry'?[2 marks]
  4. 6(c)(ii)Discuss TWO benefits of utilizing the principles involved in Green Chemistry.[4 marks]

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