Rank the given compounds in decreasing order of boiling points (from highest to lowest boiling point).

Which example best describes the stepwise curved arrow mechanism for the first step of the reaction shown?

What is the structure of (R)-2,2,3-trimethyl-3-phenyloxirane?

Select the best word or phrase that completes each sentence (alkynes, enol, keto, with, without, aldehydes, tautomers, acetylide, ionic, resonance, higher, lower, decreases, increases, alkenes, ketones, carboxylic acids, nitrogen, bromine, chlorine, oxygen, cis, trans, anti, dihydroxylation, epoxidation, oxidative, reduction, syn, odd, even, hydroboration, regioselective, above , below, allylic)   Primary alcohols are oxidized to ……………………………….  under milder reaction conditions, such as using PCC in CH2Cl2.

Which of the following is phenylthiol?

What is the expected product of the following reaction?

What is the most likely major product for the reaction shown.

Assuming that, at this point in time, only 800,000 CORKBOARD records are stored on the disk in blocks that are packed to capacity. If the records are stored as a heap, approximately how long would it take on the average to find a record with a given CBID?

Please refer to this diagram for the Questions from here to the end of the exam. Click here to open it in a new tab.  (Remember you can use Ctrl-Tab to switch between tabs, even if Chrome is full-screen and they aren’t shown.) Due to proctoring settings, you will not be able to set the exam tab and diagram tab side-by-side. You will need to switch tabs. Also, the diagram says Q18-25, but as loaded, they will be Q19-26.

Which of the following are desirable properties of a relational decomposition?