What is the correct order of the Cahn-Ingold-Prelog ranking of the following substituents as used in assigning R and S configurations of chiral centers? (higher ranking > lower ranking) ​ 1. −CH2OH 2. −CHO 3. −OCH3 4. −OCOCH3 ​

Rank the conformers of 1,2,4-trimethylcyclohexane in order of increasing stability, putting the least stable first.  

Consider the energy diagram showing the conformational analysis of propane and match the indicated position with the correct confirmation below.

Select the word or phrase that will best complete the following sentence: (atomic, electronegativity, isomers, sp, sp2, sp3, stronger, weaker, Pi, sigma, hybridization, inductive, resonance, conjugated base, conjugated acid, higher, lower, active, electrophilic, nucleophilic, hydrophobic, hydrophilic, reactive, axial, conformations, equatorial, stereoisomers, steric, torsional, angle, alkanes, cycloalkanes, ring flip, element.)   …………………. are the different arrangement of atoms that are interconverted by rotation about a single bond. Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

Bonus question Which are identical compounds?

Which of the following illustrates a correctly positioned equatorial OH?

What is the % ee of a sample of carvone that exhibits a specific rotation of −40, given that the specific rotation of (R)-carvone is −61?

Which of the following is the definition of a pair of diastereomers?

Give the IUPAC name for the following compound.   

Which of the following molecules are chiral?