12. 4) Predict the product formed in the following reaction. (Assume that each p

Question

12. 4) Predict the product formed in the following reaction. (Assume that each product compound exi as a 1/1 mixture with its enantiomer). 2Hs 1. BH3 H3 CaHs Hs Hs HOH H3 d. a. b. C. 13. (4) Which of the following compounds would have the weakest conjugate base? CH3OH c. H.O d. CH3CO2H 14. (4) An unknown compound of 5/1 enantiomeric composition has a specific rotation of -18. w rotation would you expect from a sample of the pure dextrorotatory material? a. +21 C. +2 +30 15. (4) The major product derived from treatment of 3,3-dimethyl-2-butanol with sulfuric acid we how many peaks in its proton decoupled 13C spectrum? a. two b. three d. six 16. (4) Given that the pKa of acetylene (H-CC-H) is 25, which of the following correctly lists t compounds in order of decreasing acidity (most acidic to least acidic)? a. water, acetylene, ammonia, acetic acid b. acetylene, water, ammonia, acetic acid c. acetic acid, acetylene, ammonia, water d.) acetic acid, water, acetylene, ammonia

Explanation / Answer

12) b

13) a

14) c

15) a

16) d

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