单项选择题由CH3CH3→CH3CH2Cl→CH2===CH2→CH3CH2OH的转化过程中,经过的反应是() A.取代→消去→加成 B.裂解→取代→消去 C.取代→加成→氧化 D.取代→消去→水解 点击查看答案 您可能感兴趣的试卷
2C=CHCOCH3在各种溶剂中实现n→π*跃迁的紫外光谱特征如下: 假定这些光谱的移动系全部由与溶剂分子生成氢键所产生.试计算在各种极性溶剂中氢键的强度。(NA=6.02×1023mol·L-1.h=6.623×10-34J·s,c=3×1010cm/s) 参考答案: 您可能感兴趣的试卷...
完成下列反应 (3)Cl-CH=CH2+HClrarr; (4)(CH3)3N+---CH2+HBrrarr; 相关知识点: 试题来源: 解析(1)(CH3)2CHClCH2I 在ICl中,由于碘的电负性比氯小,因此碘带部分正电荷;烯烃中由于甲基的斥电子作用,使双键上含氢多的碳原子带上较多负电荷,碘进攻该碳原子,生成的产物符合马氏规律。 (2)C6H...
(A):CH3I,(B)C2H2,( C),CH3CHOइन अभिक्रियाओं को पूरा करो- CH3COCH3overset(I2+NaOH)underset("गर्म ")rarr(A)overset(Ag)underset("गर्म ")rarr(B)overset("dil.H2SO4)unde
(c) Photo-induced H2 production with the addition of insulator particles (SiO2 or Al2O3) into the CH3OH-H2O solution. (d) The time curve of photo-induced H2 production in (c). Reaction condition: 5.0 g insulator particles were added in the solution, 0.05 wt% Pt was deposited ...
卤代烃在氢氧化钠存在的条件下水解,这是一个典型的取代反应,其实质是带负电的原子团(如OH-等阴离子)取代了卤代烃的卤原子,例如:CH3CH2Br+OH-→CH3CH2OH+Br-
However, it is difficult to balance the rate of the organic and inorganic sources and to control the reaction between the different vapour molecules of MAI and PbCHl2esriem, uwlteandeeomusolyn,swtrhaitceh easily leads a facile an to d ethffeicpireensetnmceeothf PobdI2foimr ptuhreitfiea...
(R2): HOsub2/sub+CHsub3/subC(O)CHsub2/subOsub2/subrarr;(products), alpha;sub2/subasymp;0.15. By contrast, OH was not observed (alpha;lt;0.06) as a major product from reactions where carbonyl functionality was absent, e.g. HOsub2/sub+HOCHsub2/subCHsub2/subOsub2/sub (R8), and...
在287℃时,一密闭容器中CH3NNCH3(g)初始压力为21.332kPa,1000s后总压为22.732kPa,求k及t1/2。 参考答案: 你可能感兴趣的试题 1.问答题对于一级反应,使证明转化率达到87.5%所需时间为转化率达到50%所需时间的3倍。对于二级反应又应为多少? 参考答案:...
On the other hand, the 2DP ((CH3(CH2)3NH3)2(CH3NH3)3Pb4I13) film was deposited using the hot-casting technique on a pre-heated FTO substrate at ~125 ◦C, as shown by the film synthesis process flow in Figure 4b-bottom, where the 2DP precursor was deposited at 5000 rpm for 20 ...