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Centre No. medical prognosis No. makeup Reference(s) Surname musical composition Reference Initial(s) 6 2 5 4 6254/01 0 1 Signature Examiners role further Edexcel GCE Chemistry (Nuffield) modern Unit Test 4 nuclear number 90 12 June 2008 Afternoon Time: 1 hour 30 minutes Materials call for for examination Nil A calculator whitethorn be used. Items included with nous papers Nil Team loss drawing cards use only examination lend Number Blank 1 2 3 4 5 Instructions to Candidates In the boxes above, spell your centre number, candidate number, your surname, initial(s) and your signature. resolve ALL the questions. salve your answers in the spaces provided in this question paper. final examination answers to calculations should be given to an vellicate number of significant figures. entropy for Candidates A Periodic set back is printed on the back silver screen of this question paper. The records for the various(a) parts of questions are shown in round brackets: e.g. (2). The substance mark for this paper is 60. at that place are 16 pages in this paper. on the whole unclouded pages are indicated. Advice to Candidates You are well-advised to show wholly step in any calculations. You volition be assessed on your cogency to organise and present information, ideas, descriptions and arguments clear and logically, taking into vizor your use of grammar, punctuation and spelling.

Total This publication may be reproduced only in accordance with Edexcel Limited secure policy. ©2008 Edexcel Limited. Turn over N31027A W850/R6254/57570 7/7/7/3/2900 correspondents Log. No. *N31027A0116*  sporting PAGE 2 *N31027A0216* Leave blank Answer ALL the questions. Write your answers in the spaces provided. 1. This question is slightly the reaction of iodine with propanone. CH3COCH3(aq) + I2(aq) ? CH3COCH2I(aq) + H+(aq) + I(aq) (a) Suggest, in outline, cardinal different methods for following the station of this reaction. State which of the reactants or products could be measured by all(prenominal) method you choose. system 1...If you need to get a right essay, order it on our website: Orderessay

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