25. The primary product of the following reaction is which of the following? H950. H2O + A. D. CH OH CHE OH B. E. Hac None of the above OH c. CH QH OH 26. The correct synthesis of octane would involve which of the following reactions? A. dehydrogenation of 2-octene C. hydrogenation of 3-octene B. halogenation of 4-octene D. reduction of heptane 27. When excess hydrogen bromide is added to 1-pentyne, the possible product is which of the following! A. 1,1-dibromopentanc c. 1.1.2.2-tetrabromopentane B. 1,2-dibromopentanc D. 2,2-dibromopentane 28. The primary product of the reaction below which uses excess HBr is which of the following? HBr A. C. Br Br Br B B. D. BE Br Br Br Br Br