1. Version 2.0 Copyright © AQA and its licensors. All rights reserved. C1.4.1 & 1.4.2 Crude oil and Hydrocarbons

2. Using Exam pro items to support successful outcomes Version 2.0 Copyright © AQA and its licensors. All rights reserved. Learners will be able to test their progress against learning outcomes using questions from past AQA GCSE examinations C1.3.2

3. Foundation C1 Jan 12, 3 1 Version 2.0 Copyright © AQA and its licensors. All rights reserved.

8. Mark scheme- Foundation Version 2.0 Copyright © AQA and its licensors. All rights reserved. QAnswerExtra InformationMark 1 (a)(i)hydrocarbons 1 1 (a)(ii) Ethane has the smallest molecules Heptadecane has the highest boiling point 1111 1 (a)(iii) Evaporating condense 1111 1 (b)(i)WYWY 1111 1 (b)(ii) floatsIf no answer written on line allow correct answer indicated in the box 1 1 (b)(iii) Open the tap Stop the flow of liquid when the water has run out Allow let the water out Ignore remove water Allow until oil is left behind Ignore filter 1111 Total 10

9. Higher C1 Jan 12, 2 Version 2.0 Copyright © AQA and its licensors. All rights reserved.

10. Use the information on the last slide to answer these questions Version 2.0 Copyright © AQA and its licensors. All rights reserved.

13. Mark scheme- Higher Version 2.0 Copyright © AQA and its licensors. All rights reserved. QAnswerExtra InformationMark 1 (a)(i)C 7 H 16 Mark answer line first Answer may be given in table 1 1 (a)(ii) C n H 2n+2 1 1 (b)(i)Carbon monoxideDo not accept carbon oxide Do not accept water Ignore CO 1111 1 (b)(ii) Because of partial/incomplete combustion (in reaction 2) or complete combustion (in reaction 1) Allow because there is less insufficient oxygen (in reaction 2) or sufficient oxygen I(in reaction 1) Allow different amounts of oxygen used ( in the reactions) 19O 2 (in reaction 1) and 13O 2 ( in reaction 2) Ignore air 1 1 (c)(i)15%Ignore units 1 1 (c)(i)Total 10