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6) (1 pt.) During the Wittig reaction a group is converted to a(n) 7) (1 pt.) The phosphonium halide reacts with a strong we will use 8) (0.5 pt.) The extraction will be carried out with dichloromethane. Another name for this common solvent is 9) (0.5 pt.) The formula for dichloromethane is 10) (0.5 pt.) During the extraction, will be the top layer. 11) (1 pt.) The organic layer will be washed with a solution, which contains and 12) (0.5 pt.) Magnesium sulfate (MgSO4) is added to the ether layer to a) dry the aqueous layer b) increase the pH of the aqueous layer c) reduce the pH of the aqueous layer d) dry the organic layer from any residual water