ChaPTeR 9 AlKYNES SOLUTIONS TO TEXT PROBLEMS 9.1 The reaction is an acid-base process; water is the proton donor. Two separate proton-transfer steps are involved Carbide ion Acetylide ion Hydroxide ion -O2 9.2 a triple bond may connect C-I and C-2 or C-2 and c-3 in an unbranched chain of five carbons CH3CH2CH2C≡ CHCH, CH2C≡CCH3 One of the C-h isomers has a branched carbon chain H3 209 Back Forward Main Menu TOC Study Guide Toc Student OLC MHHE Website__ __ __ 209 CHAPTER 9 ALKYNES SOLUTIONS TO TEXT PROBLEMS 9.1 The reaction is an acid–base process; water is the proton donor. Two separate proton-transfer steps are involved. 9.2 A triple bond may connect C-1 and C-2 or C-2 and C-3 in an unbranched chain of five carbons. One of the C5H8 isomers has a branched carbon chain. 3-Methyl-1-butyne CH3CHC CH CH3 1-Pentyne CH3CH2CH2C CH 2-Pentyne CH3CH2C CCH3 H CCH Acetylene H O Hydroxide ion C C H Water Acetylide ion H H O Carbide ion C H Acetylide ion O H Water Hydroxide ion C H H O C C Back Forward Main Menu TOC Study Guide TOC Student OLC MHHE Website