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SP (KN) T34460/4
© UCLES 2007
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
General Certificate of Education Ordinary Level
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.
Do not use staples, paper clips, highlighters, glue or correction fluid.
DO NOT WRITE IN ANY BARCODES.
Section A
Answer all questions.
Write your answers in the spaces provided on the Question Paper.
Section B
Answer any three questions.
Write your answers on any lined pages and/or separate answer paper.
A copy of the Periodic Table is printed on page 20.
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.
*3040431261*CHEMISTRY
5070/02
Paper 2 Theory
October/November 2007
1 hour 30 minutes
Candidates answer on the Question Paper.
Additional Materials:
Answer Booklet/Paper
For Examiner’s Use
Section A
B7
B8
B9
B10
Total
2
5070/02/O/N/07
For
Examiner’s
Use
© UCLES 2007
Section A
Answer all the questions in this section in the spaces provided.
The total mark for this section is 45.
A1 Choose from the following gases to answer the questions below.
ammonia
butane
carbon dioxide
carbon monoxide
hydrogen
methane
nitrogen
nitrogen dioxide
oxygen
Each gas can be used once, more than once or not at all.
Which gas is
(a) the main constituent of natural gas,
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(b) used by plants in photosynthesis to form glucose,
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(c) produced when aqueous sodium nitrate is warmed with aqueous sodium hydroxide an