题型:判断题 烯烃、CO和 H2在某种催化剂作用下发生反应生成醛,如:RCH=CH2+CO+H2RCH2CH2CHO和RCH(CH3)CHO这种反应称为羰基合成反应,也叫做烯烃的醛化反应。试判断由分子式为 C4H8的烯烃发生碳基合成反应后,得到的有机产物共有A.3种B.4种C.5种D.6种 查看答案
题型:判断题 In relation to company law, explain:(b) the circumstances under which a company can reduce its capital and the procedure to be followed. (6 marks) 查看答案