AQA-CH2HP-QP-JUN12 - Centre Number For Examiners Use Candidate Number Surname Other Names Examiners Initials Candidate Signature Question General

AQA-CH2HP-QP-JUN12 - Centre Number For Examiners Use...

This preview shows page 1 - 4 out of 20 pages.

General Certificate of Secondary Education Higher Tier June 2012 Additional Science CH2HP Unit Chemistry C2 Chemistry Unit Chemistry C2 Thursday 24 May 2012 9.00 am to 10.00 am For this paper you must have: a ruler the Chemistry Data Sheet (enclosed). You may use a calculator. Time allowed 1 hour Instructions Use black ink or black ball-point pen. Fill in the boxes at the top of this page. Answer all questions. You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. Do all rough work in this book. Cross through any work you do not want to be marked. Information The marks for questions are shown in brackets. The maximum mark for this paper is 60. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. Question 2(a) should be answered in continuous prose. In this question you will be marked on your ability to: – use good English – organise information clearly – use specialist vocabulary where appropriate. Advice In all calculations, show clearly how you work out your answer. CH2HP H (Jun12CH2HP01) G/J84031 6/6/6/6 Centre Number Candidate Number Surname Other Names Candidate Signature For Examiner’s Use Examiner’s Initials Question Mark 1 2 3 4 5 6 7 TOTAL
Image of page 1
2 Do not write outside the box (02) G/J84031/Jun12/CH2HP Answer all questions in the spaces provided. 1 Icing on cakes is tested to check that safe colours were used when they were made. Paper chromatography is one method of testing which colours are in cake icing. 1 (a) The diagram shows an experiment a student did. Chromatography paper Lid Colouring from cake icing Safe food colours Solvent Container Start line 1 (a) (i) Suggest why there is a lid on the container. ............................................................................................................................................ ............................................................................................................................................ (1 mark) 1 (a) (ii) The start line should be drawn in pencil not in ink. Suggest why. ............................................................................................................................................ ............................................................................................................................................ (1 mark)
Image of page 2
3 Do not write outside the box (03) G/J84031/Jun12/CH2HP Turn over 1 (b) The diagram shows the results of the paper chromatography experiment. Colouring from cake icing Safe food colours
Image of page 3
Image of page 4

You've reached the end of your free preview.

Want to read all 20 pages?

  • Spring '16
  • nour
  • Biology, RNA, Pastpaperquestions AQA Science, ........., Potassium Chloride, Oxide

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes