1. Rank the compounds in each group, groups l- IV, (1 - highest Rf value, 3-lowest...
Which of the following compounds would you expect to have the lowest Rf value on a silica gel TLC plate developed with dichloromethane? O A. Naphthalene O B. Phenyl acetate OC Butyric acid QUESTION 3 Which of the following compounds would you expect to have the highest Rf value on a silica gel TLC plate developed with dichloromethane? O A 2-octanone O B. Acetic acid C. 1-butanol OD. decane E. acetaldehyde
Question 34 (3 points) Rank the following compounds from largest Rf (on the left) to smallest Rf (on the right) in a TLC run with hexane/ethyl acetate mobile phase. OH . HII O>>11 >> O >> >1>111
Rank the following compounds from largest RF (on the left) to smallest Rf (on the right) in a TLC run with hexanelethyl acetate mobile phase. OH Di O I>II>11 ||I>II> 111>I>II 11>I>I|| A reaction was carried out between maleic anhydride (MA) and anthracene (A). The final reaction mixture (R) and samples of both starting materials were spotted on a TLC plate and run. Which plate shows that the reaction mixture contains a new product and maleic anhydride as excess reagent?...
predict witch will have the highest rf value and witch will have the lowest out of naphthalene nonpolar butyric acid polar and phenyl acetate slightly polor when developed on a silica gel TLC plate using toluene as the mobile phase
For each set of compounds shown below, rank them in order of the 'H NMR chemical shift of their ortho hydrogen atoms, labeling the structures "1" (highest) through "3" (lowest). 12 pts each 6pts) a) 1. NH2 b) Ha c) NH2 CN NO2 2. Would you expect the 'H NMR chemical shift of the ortho hydrogen atoms of the phenoxide anion to be higher or lower than those of phenol? Explain briefly. [2 pts он vs
For each set of...
Q:3. Rank the following from highest to lowest priority according to the Cahn-Ingold- Prelog system. IV. -SH I. -ОН I. -F II.-H Q:4. Rank the following from highest to lowest priority according to the Cahn-Ingold- Prelog system. I. CH II.CN III -CH-ОН IV. -Br Q:5. The structure of Crestor (rosuvastatin), a medication used to reduce cholesterol, is shown below. If the specific rotation for this compound is known to be +100. Will it be dextrorotatory or levorotatory? N. CO2H он...
Refer to the four compounds below for question 5-7: CH3 will have intermolecular hydrogen bonding. 5) 6) is the most nonpolar compound in the group. 7) will have the lowest Rf value on a silica-gel TLC plate. 17) In the distillation setup shown, the water in the condenser (5) should flow 0 161 A) in through [7) and out through [9] C) in through [9] and out through [7] B) in through [61 and out through [7] D) it is...
Rank the following compounds in order of increasing
pKa, entering a 1, 2, 3, or 4 next to each
structure, with 1 for lowest pKa and 4 for highest
pKa
Rank the following compounds in order of increasing pKa, entering a 1, 2, 3, or 4 next to each structure, with 1 for lowest pKa and 4 for highest pKa Cl OH он CI H CI CI
1) Rank the following compounds in order of increasing oxidation level (from lowest to highest. CH COOH CHCHs CHsCHO CH:-CH2 12) What is the starting material in the following reaction? Br H2, Lindlar's cat. Br2 Br D)IV C)111 B) 11 A)1
3. Rank the following compounds in order of increasing rate of bromination from 1 to 5 (i.e., from 1 for least reactive to 5 for most reactive). ОН ОН ОН ОН ОН CH3 Br NO2 NO2 CH3 $ de represente en & NO2 - ii iv V iii iv 4. Which of the following compounds can probably be prepared in a good yield (as a major product) from benzene using two successive electrophilic substitution reactions? Check all that apply. Br...