. What is the role of the silica gel beads in the reaction setup? 2. What is byproduct that forms when water is present that prevents the Grignard reagent from forming? 3. Sulfuric acid has two roles, what are they? 4. In step 21, explain why hydrochloric acid cannot be used in place of sulfuric acid. 5. If there was another spot on the TLC plate, what would be that other spot assuming all starting material was consumed? At what stage of the workup do we separate this byproduct from triphenylmethanol