B-6.Which of the following produces a signifcant amount of acetylide ion on reaction withacetylene?(a)Conjugate base of CH3OH (pKa16)(b)Conjugate base of H2(pKa35)(c)Conjugate base of H2O (pKa16)(d)Both (a) and (c).B-7.Which of the following is the product of the reaction of 1-hexyne with 1 mol of Br2?B-8.Choose the sequence of steps that describes the best synthesis of 1-butene from ethanol.(a)(1)NaC>CH;(c)(1)HBr, heat; (2) NaC>CH;(2)H2, Lindlar Pd(3)H2, Lindlar Pd(b)(1)NaC>CH;(d)(1)HBr, heat; (2) KOC(CH3)3, DMSO;(2)Na, NH3(3)NaC>CH; (4) H2, Lindlar PdB-9.What is (are) the major product(s) of the following reaction?(c)B-10.Which would be the best sequence of reactions to use to prepare cis-3-nonene from 1-butyne?(a)(1) NaNH2in NH3; (2) 1-bromopentane; (3) H
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