Which of the following descriptions apply to both D-glucopyranose and L-galactopyranose?I. They are both ketosesII. They are both aldosesIII. They are enantiomers of each otherIV. They are diastereomers of each otherV. They are epimers of each other

Which of the following monomers is most likely to undergo anionic polymerization?

Which one of the following monomers will produce polyisoprene?

Bonus question Provide an efficient stepwise synthesis for the following.              The answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep three spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.

In which type of polymer are the chains packed less tightly together, resulting in lower melting points and a softer texture?

Bonus question Provide an efficient stepwise synthesis for the following.              The answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep three spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.

Which of the following is a D-aldopentose?

Bonus question Provide an efficient stepwise synthesis for the following.             The answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep three spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.

Bonus question Provide an efficient stepwise synthesis for the following.             The answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep three spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.

Which one of the following is (are) a biopolymer?