九天国际教育GCSE真题Specimen QP - Paper 6 CIE Chemistry IGCSE

PMT
Cambridge International Examinations Cambridge International General Certificate of Secondary Education
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CHEMISTRY Paper 6 Alternative to Practical SPECIMEN PAPER
0620/06
For Examination from 2016 1 hour
Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, glue or correction fluid. DO NOT WRITE IN ANY BARCODES. Answer all questions. Electronic calculators may be used. You may lose marks if you do not show your working or if you do not use appropriate units. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question.
The syllabus is accredited for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.
This document consists of 11 printed pages and 1 blank page.
© UCLES 2014
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PMT
2 1 The diagram shows the apparatus used to prepare a dry sample of a gas. The gas is more dense than air.
stand and clamp
concentrated sulfuric acid
(a) Complete the boxes to name the apparatus. (b) Identify one mistake in the apparatus.
[3]
[1]
(c) Suggest a reason why the gas is passed through concentrated sulfuric acid. [1] [Total: 5]
© UCLES 2014
0620/06/SP/16

PMT
3 2 A student investigated the rate of reaction between excess magnesium and two different dilute acids, X and Y. Two experiments were carried out. Experiment 1 The apparatus was set up as shown in the diagram.
rubber connector stand and clamp inverted 100 cm3 measuring cylinder
bung
conical flask trough water
Using a measuring cylinder, 50 cm3 of dilute acid X was poured into the conical flask. 0.5 g of magnesium ribbon was added to the conical flask and the bung added. The timer was started and the volume of gas collected in the measuring cylinder was measured every 30 seconds for three minutes.
© UCLES 2014
0620/06/SP/16
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PMT
4 (a) Use the measuring cylinder diagrams to record the volumes of gas collected. time / s measuring cylinder diagram
0
total volume of gas collected / cm3
0
5 10
10
30
15 20 20
60
25 30 25
90
30 35
30
120
35 40 40
150
45 50 45
180
50 55
[2]
© UCLES 2014
0620/06/SP/16