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?

Which of the following statements is(are) true concerning the equilibrium between the α- and β-pyranose forms of D-glucose? I. The interconversion is acid-catalyzed. II. Both anomers are equally stable. III. Both anomers are optically active.

Which of the following is D-galactose?

Which of the following polymers are classified as thermoplastics?