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UNIT 2
               MODULE 3: INDUSTRY AND THE ENVIRONMENT (cont’d)


                SPECIFIC OBJECTIVES                 EXPLANATORY NOTES            SUGGESTED  PRACTICAL
                                                                                 ACTIVITIES


                6.        Chlorine

                Students should be able to:

                6.1.     describe   the   chemical
                         processes  involved  in  the
                         electrolysis  of  brine  using
                         the diaphragm cell;

                6.2.     discuss  the    economic    Include sodium hydroxide.
                         advantages   of   chlorine
                         production    by      the
                         diaphragm cell method;

                6.3.     discuss   the   industrial   Bleaches,  PVC,  halogenated
                         importance of the halogens   hydrocarbons,    solvents,
                         and their compounds; and,   aerosols,      refrigerants,
                                                     anaesthetics.

                6.4.     assess  the  impact  of  the   Refer to Specific Objective 1.3.
                         chlor-alkali industry on the
                         environment.

                7.        Sulphuric Acid

                Students should be able to:

                7.1.     describe   the    Contact   Include  the  principles  of
                         process      for      the   chemical  equilibrium  and
                         manufacture  of  sulphuric   kinetics. Include equations.
                         acid;

                7.2.     discuss  the    industrial   SO2 in food preservation and
                         importance  of  compounds   H2SO4 manufacture.
                         of sulphur; and,

                7.3.     assess  the  impact  of  the   Refer to Specific Objective 1.3.
                         sulphuric acid industry.










                          CXC A11/U2/17                    58
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