2021大学慕课答案 College Chemistry（II）(Central South University) 最新大学MOOC满分章节测试答案

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Chapter 3 Basis of Stereochemitry – Speaker： Wang Weihong, Hu yunbin Unit Test 1
Chapter 6 Aromatic Hydrocarbons – Speaker： Wang weiling, Chen Yin Unit test 2
Chapter 10 Spectrometric Identification of Organic Compounds – Speaker： Luo Yiming, Xian Haoyue Un
Chapter 13 Derivatives of Carboxylic Acids – Speaker： Pong Hongjian Unit 4 test
Chapter 15 Heterocyclic Compounds Unit Test 5
Chapter 18 Amino Acids, Peptides and Proteins Unit Test 6

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2021-03-16到2021-06-28
本篇答案更新状态:已完结

Chapter 3 Basis of Stereochemitry – Speaker： Wang Weihong, Hu yunbin Unit Test 1

1、问题:Which of the following statements is incorrect ?
选项：
A:In organic compounds, carbon atoms participate in bonding in a hybrid state.
B:There are three hybrid states of carbon: sp3, sp2 and sp.
C:The overlapping between hybrid orbits forms theσbond.
D:Electronegativity of three hybrid orbitals: Csp < Csp2 < Csp3.
答案: 【Electronegativity of three hybrid orbitals: Csp < Csp2 < Csp3.】

2、问题:Which of the following chemical bonds has the highest degree of polarity ?
选项：
A:C—F
B:C—Cl
C:C—Br
D:C—I
答案: 【C—I】

3、问题:Which is the correct name for the following compound
选项：
A: 2-bromo-2-pentene
B:4-bromo-3-pentene
C:4-bromo-2-pentene
D:2-bromo-3-pentene
答案: 【4-bromo-2-pentene】

4、问题:Which is the correct name for the following compound:
选项：
A:5-nitro-2-naphthol
B:α-nitro-β-hydroxylnaphthalene
C:4-nitro-1-naphthol
D:α-nitro-β-naphthol
答案: 【5-nitro-2-naphthol】

5、问题:The structural formula of (R)-2-chlorobutanoic acid is：
选项：
A:
B:
C:
D:
答案: 【】

6、问题:Compounds containing chiral carbons must be chiral molecules.
选项：
A:正确
B:错误
答案: 【错误】

7、问题:In general, if there is no symmetrical plane and center in the molecule, this molecule is chiral.
选项：
A:正确
B:错误
答案: 【正确】

8、问题:In organic compounds, single bond is σ bond, only one of double bond and three bond is σ bond, the rest is π bond.
选项：
A:正确
B:错误
答案: 【正确】

9、问题:is named 3-methyl-3-phenylpropanal.
选项：
A:正确
B:错误
答案: 【错误】

10、问题:There are both symmetrical plane and center in the structure of ，so it is an achiral molecule.
选项：
A:正确
B:错误
答案: 【正确】

Chapter 6 Aromatic Hydrocarbons – Speaker： Wang weiling, Chen Yin Unit test 2

1、问题:Which of the following free radicals is the most stable？
选项：
A:
B:
C:
D:
答案: 【】

2、问题:Which of the following carbocation stability sequences is correct？
选项：
A:①＞②＞③＞④
B:④＞③＞②＞①
C:④＞③＞①＞②
D:②＞①＞③＞④
答案: 【④＞③＞①＞②】

3、问题:Which of the following chemical reactions is false？
选项：
A:
B:
C:
D:
答案: 【】

4、问题:Which is the main product of the following reactant？
选项：
A:
B:
C:
D:
答案: 【】

5、问题:Which of the following groups is activating for electrophilic substitution reactions on the benzene ring?
选项：
A:
B:-Cl
C:-CF3
D:-NO2
答案: 【】

6、问题:The more stable the free radical is, the less active it is and the slower the reaction speed is. Therefore, radical substitution of tertiary hydrogen is the most difficult.
选项：
A:正确
B:错误
答案: 【正确】

7、问题:The more stable the alkene is, the lower the electrophilic addition activity is.
选项：
A:正确
B:错误
答案: 【错误】

8、问题:But-1-ene and but-1-yne can be distinguished by an ammonia solution of cuprous chloride.
选项：
A:正确
B:错误
答案: 【正确】

9、问题:All meta-directing groups are deactivating, and most orth- and para-directing groups are activating. The halogens are unique in being orth- and para-directing deactivators.
选项：
A:正确
B:错误
答案: 【正确】

10、问题:When a benzene ring is attached to an alkyl side chain, it can be oxidized to benzoic acid.
选项：
A:正确
B:错误
答案: 【错误】

Chapter 10 Spectrometric Identification of Organic Compounds – Speaker： Luo Yiming, Xian Haoyue Un

1、问题:Which of the following compounds has the highest reaction rate by the Sn1 reation？
选项：
A:1-bromobutane
B:2-bromobutane
C:2-bromo-2-methylpropane
D:1-bromo-2-methylpropane
答案: 【2-bromo-2-methylpropane】

2、问题:Which of the following compounds is the most acidic？
选项：
A:phenol
B:p-cresol
C:p-nitrophenol
D:benzyl alcohol
答案: 【p-nitrophenol】

3、问题:To distinguish phenol from benzyl alcohol, which is not the reagent of choice？
选项：
A:FeCl3(aq.)
B:Br2(aq.)
C:NaOH(aq.)
D:NaHCO3(aq.)
答案: 【NaHCO3(aq.)】

4、问题:Which of the following chemical reactions is not true？
选项：
A:
B:
C:
D:
答案: 【】