Place 2-methyl-2-propanol (Alcohols folder) in the RBF and move a test tube sample to the clamp stand. Add chromic acid (H2CrO4) and record any changes in the video window. Replace the test tube with a fresh sample, add ZnCl2, and observe any changes as the video progresses. Take the IR spectrum by dragging the cursor from the IR spectrometer to the RBF; record any significant signals. Collect the 13C spectrum by dragging the cursor from the NMR spectrometer to the RBF. Record how many signals show up, where they show (ppm values), and their relative intensities. Use your notes to match the statements below with your observations. When chromic acid was added the test tube contents became a blue/green colour because the alcohol was oxidized Two signals at a 1 to 3 ratio appeared in the carbon spectrum matching the C(CH3)3 part of the alcohol Adding zinc chloride caused the solution to become white and cloudy as the alcohol reacted The infrared spectrum showed the expected broad signal for the OH group at 3400 wavenumbers The orange colour of the chromic acid persisted when it was added to the tertiary alcohol The carbon spectrum shows 4 signals for the 4 carbons in the alcohol