OCR A AS Specimen Paper 2 Q2

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2 A large proportion of the worlds output of organic chemicals is used to make addition polymers. These polymers have a variety of uses. (a) Poly(propene) is used to make packaging, textiles and rope. A repeat unit for poly(propene) is shown below. (i) Explain why poly(propene) is a saturated hydrocarbon. .(ii) State the bond angle around each carbon atom in poly(propene). [1][1] (iii) After polymers have been used for packaging, the waste polymers need to be processed to save resources, for example, by recycling. Describe two other ways in which waste poly(propene) can be processed in a sustainable way. Specimen . . . . [2]OCR 2014 H032/02 Turn over<br /> (b) Poly(ethenol) is used to make soluble laundry bags. A section of the structure of poly(ethenol) is shown below. (i) Draw a structure to represent one repeat unit of poly(ethenol). Infrared spectrum (ii) Poly(ethenol) is not manufactured from ethenol. Ethenol is unstable and it forms a more stable structural isomer. Analysis of the structural isomer gave the following data. SpecimenOCR 2014 H032/02 [1]<br /> Mass spectrum Use all the data to show that the isomer is not ethenol. Identify the structural isomer of ethenol. In your answer you should make clear how your explanation is linked to the evidence. Specimen . . . . .[4]OCR 2014 H032/02 Turn over<br />

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