Chemistry Jan 2010 0.0 / 5 ? ChemistryAmines and azo dyesA2/A-levelAll boards Created by: jatyizationCreated on: 29-11-14 16:09 Suggest why the concentration of sodium hydroxide in a solution slowly decreases when left open to air. NaOH reacts with carbon dioxide in the air 1 of 7 Explain why the method of distinguishing optical activity of two isomers will not distinguish between isomer Q and Isomer R. Product from Q is a racemic mixture; Racemic mixture is inactive; Product from R is inactive 2 of 7 Give a use for methyl esters when glycerol is heated with an excess of methanol. Biodiesel 3 of 7 Name a suitable method by which a mixture of amino acids formed by hydrolysis can of the protein can be separated. Electrophoresis or Chromatography. 4 of 7 Identify a suitable reagent for the reduction of a dinitrobenzene into a diamine. Sn/HCL 5 of 7 State the difference in the biodegradability in Kevlar compared to that of polymerised alkenes, taking into consideration bonding. Kevlar is biodegradeable but polyalkenes not; Kevlar has polar bonds; Can be hydrolysed; Polyalkenes non polar 6 of 7 Outline a 3 step synthesis starting from methane to produce CH3CH2NH2. Step 1 Cl2 UV; Step 2 KCN aq and alcoholic; Step 3 LIAH4 7 of 7
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