In need of serious help, any contribution will help. Thank you. Which carbohydra

Question

In need of serious help, any contribution will help. Thank you.

Which carbohydrate fulfills the following reaction scheme where A, B, and C are all optically active? not a. -d. Which compound is sucrose (table sugar)? not a. -d. Sucrose reacts with Ag(I) in ammonia to make silvered mirrors? true false Match each reaction sequence to a final product on the right. Answer may be repeated., NH_3, HCN, H_3O^+ isoleucine valine, PBr_3, Br_2, H_2O,, NH_2NH_2 leucine not a.-d., NaOCH_3, NaOH, H^+, heat lysine Which compound is Met-Thr? not a.-d. How many dipeptides could be synthesized from the reaction of the following compounds with DCC and removal of the blocking groups? 2 3 4 5 not a.-d. Which compounds would not be formed if the products of question 19 were reacted with phenylthiosiocyanate (PhNCS) and catalysis? a.-c. would all be formed a.-c. would not be formed

Explanation / Answer

12. Of the given carbohydrates the one which staisfies the reaction scheme would be,

d.

13. Sucrose can be represented as,

a.

14. Sucrose reacts with Ag(I) to give silver mirror,

b. False

15.-17. Match each of the following,

15. a. leucine

16. d. valine

17. e. not a.-d.

18. Met-Thr is,

d.

19. The number of dipentides possible here are,

d. 5

20. When treated with phenylisothiocyanate, the compound which is not formed is,

b.

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