(a) In the mashing process, some of the starch is broken down into glucose. Using the flow chart, write the word equation for the reaction taking place in the mashing process. 1 (b) Name process X. 1 (c) Draw the full structural formula for ethanoic acid. 1 d) Ethanoic acid can be reacted with methanol to form an ester, which is used as a solvent in nail varnish remover. Name this ester. 1 2010 I2 7 20. A recipe for making blackcurrant wine is (a) Yeast is used to convert sugar into ethanol. (i) What name is given to this process? 1 (ii) What type of substance, found in yeast, acts as a catalyst? 1 (b) Why was the mixture cooled at step 3, before the yeast was added to it? 1 (c) When blackcurrant brandy is made from blackcurrant wine, the ethanol
(a) In the mashing process, some of the starch is broken down into glucose. Using the flow chart, write the word equation for the reaction taking place in the mashing process. 1 (b) Name process X. 1 (c) Draw the full structural formula for ethanoic acid. 1 d) Ethanoic acid can be reacted with methanol to form an ester, which is used as a solvent in nail varnish remover. Name this ester. 1 2010 I2 7 20. A recipe for making blackcurrant wine is (a) Yeast is used to convert sugar into ethanol. (i) What name is given to this process? 1 (ii) What type of substance, found in yeast, acts as a catalyst? 1 (b) Why was the mixture cooled at step 3, before the yeast was added to it? 1 (c) When blackcurrant brandy is made from blackcurrant wine, the ethanol
N5-Unit-2-NC.docx