14. What compound results from the 1,4-addition of one equivalent of HBr to 1,3-butadiene?(A) 1-bromo-1-butene(B) 1-bromo-2-butene(C) 4-bromo-1-butene(D) 3-bromo-1-butene(E) 2-bromo-2-butene

7. Predict the specific rotation of the compound shown.(A) It is impossible to predict; it must be determined experimentally.(B) Because both asymmetric centers are R, the compound is dextrorotatory.(C) Because both asymmetric centers are S, the compound is dextrorotatory.(D) Zero; the compound is achiral.(E) Because this compound represents a racemic mixture, the compound is dextrorotatory.

14. What compound results from the 1,4-addition of one equivalent of HBr to 1,3-butadiene?
(A) 1-bromo-1-butene
(B) 1-bromo-2-butene
(C) 4-bromo-1-butene
(D) 3-bromo-1-butene
(E) 2-bromo-2-butene

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