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Bonus question What is the relationship between the compounds shown below?

Identify the solvent that is not recommended for Green Chemistry.

Compound A has molecular formula C9H20.  Compound A produces exactly three constitutional isomers upon monochlorination, and one major constitutional isomer upon monobromination.  Which of the following are possible structures of compound A?  

Which of the following statements about the stereochemistry of halogenation reactions is true?

Select the best word or phrase that completes each sentence: (addition, allylic substitution, decreases, faster, heterolysis, homolysis, increases, inductive effects, inhibitor, initiator, ionic, less, more, paired, radical resonance, selective, slower, unpaired, unselective, with, without)   The stability of a radical …………………………… as the number of alkyl groups bonded to the radical carbon increases.  Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

Rank the following radicals in order of decreasing stability (most stable to least stable).

Using retrosynthetic synthesis, determine which compound(s) could lead to the bromoalkene shown below in a single step.  

Which hydrogen atom is most easily removed in a radical halogenation?

Provide the major product(s) for the following synthesis.    

Identify the statement that is not part of Green Chemistry.