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?

Which of the following is the repeating unit in polyvinyl chloride (PVC)?

Which of the following polysaccharides has all β-(1→ 4) glycosidic linkages?

Which of the following is the repeating unit in polyvinyl chloride (PVC)?

The glass transition temperature (Tg) is the temperature at which the ________regions of the polymers become ________.