14. Which of the following compounds would not tun chromic acid from orange to green? A. C. 15. You have examined several groups of substances in the laboratory. The following table includes information regarding solubility in water and results of specific tests for functional groups. Use it to identify unknowns A,B,C,D,E,F, and G. (Determine with unknown from the list below belongs to which letter) sol/H20 Chromic 2,4 Tollens FeCl 2KI Br2 Lucas AcidDNP green ppt A. NR green ppt. NR NR NR NR C. E. Positive (+) reaction with: 2,4,DNP -forms yellow or red precipitate (ppt). Tollens forms silver mirror FeCl deep purple color KI (iodoform test) -yellow precipitate (ppt) Br2- red color of bromine disappears Lucas- rapid formation of a cloudy precipitate (ppt). Negative reaction is indicated by (-) or NR (no reaction) Water solubility: (+) indicates soluble in water, (-) indicates not soluble in water. "Unknowns include: acetone, cyclohexene, ethanol, formaldehyde, hexane, phenol, and tert-butyl alcohol (2methyl, 2propanol)