一、选择题 1.H2(g)+2O2(g)H2()的Qp与Qv之差(kmol)是…() (A)-3.7 (B)3.7 (C)1.2 (D)-1.2

第一节 概述 第二节 脂溶性维生素（维生素A、D、E、K） 第三节 水溶性维生素（维生素B、C）

Golden rice: two European scientists created a new strain of rice enriched in B-carotene, which the body uses to make vitamin A. This is a kind of transgenic plant(转基因植物)

一、选择题 1.0.40mol·dm3丙酸溶液的pH是(Ka=1.3×10-5)…() (A)0.40 (B)2.64 (C)5.28 (D)4.88

Woodward-Hoffmann Theory R. B. Woodward and R. Hoffmann, The Conservation of Orbital Symmetry, Verlag Chemie, Weinheim, 1970. Frontier Molecular Orbital Theory I. Fleming, Frontier Orbitals and Organic Chemical Reactions

Smith, K. and A. Pelter (1991). Hydroboration of C=C and Alkynes. Comprehensive Organic Synthesis. B. M. Trost and I. Fleming. Oxford, Pergamon Press. 8: 703. Beletskaya, I. and A. Pelter (1997). “Hydroborations catalysed by transition metal complexes

eactions of Carbon Nucleophiles with Carbonyl Compounds Carey & Sundberg: Part B; Chapter 5 Reduction of Carbonyl & Other Functional Groups

北京化工大学：《有机化学》课程教学资源（习题与答案）Chapter 18 Enols, Enolates, and the Aldol Condensation：a, b-Unsaturated Aldehydes and Ketones

北京化工大学：《有机化学》课程教学资源（章节测验，含答案）Chapter 18 Enols, Enolates, and the Aldol Condensation：a, b-Unsaturated Aldehydes and Ketones

一、选择题(单项选择,共15分) 1.将pH=1.0与pH=3.0的两种强酸溶液等体积混合,混合后溶液的pH值为:(A)2.0;(B)1.3;(C)0.3;(D)2.3