1. Version 2.0 Copyright © AQA and its licensors. All rights reserved. C1.6.1 Vegetable Oils

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

3. Foundation Tier C1 June 12, 5 Version 2.0 Copyright © AQA and its licensors. All rights reserved.

7. Mark Scheme - Foundation Version 2.0 Copyright © AQA and its licensors. All rights reserved. QAnswerExtra InformationMark (a)(i) Olive oil does not dissolve in water 1 (a)(ii) (the mustard is) an emulsifierAccept an emulsion has been formed 1 (b)(i) Double 1 (b)(ii) Add bromine water- turns colourless 1 (c)(i) Because the (olive) trees/plants/crops/leaves/fruit absorb/use carbon dioxide Allow carbon for carbon dioxide Allow carbon dioxide is used in photosynthesis 1 (c)(ii) Any one from Olive oil is a food Olives are slow growing Olives require a lot of land Not enough olive trees/oil Olive oil dense/viscous/high boiling point Ignore habitats Ignore gives off carbon dioxide 1

8. Higher C1 June 12, 6 Version 2.0 Copyright © AQA and its licensors. All rights reserved.

11. Mark Scheme - Higher Version 2.0 Copyright © AQA and its licensors. All rights reserved. QAnswerExtra InformationMark (a)(i ) Olive oil does not dissolve in waterAccept olive oil and water are immiscible Allow there is no emulsifier Ignore mustard Ignore do not mix/different densities 1 (a)(i i) (the mustard is) an emulsifier or an emulsion forms or a suspension of oil in vinegar/.water forms or visa versa The molecules have a ‘head’/hydrophilic end which dissolves in/attracted to oil accept because an emulsifier is added Accept diagram drawn showing this 111111 (b) Test Add bromine water Result turns colourless Allow iodine (solution) Allow orange colour disappears/decolourises Ignore clear 1111 (c) (olive oil is reacted with) hydrogen using a nickel catalyst (at a temperature of about 60 o C Accept hydrogenated Allow 50-120oC Ignore hot/heat 111111 Total 9