Số đồng phân của hợp chất este đơn chức có CTPT C4H8O2 tác dụng với dung dịch AgNO3/NH3 sinh ra Ag là  

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  Nhu: “ ___________ a website?”  

  Cuong: “No, this is the first time”
   

• Choose the best answer for the following sentence:

  Pictures, real objects, posters, etc. are __________ aid in teaching.
  
  

• Choose the best answer for the following sentence:

  Thanh: “What is the film or play that is intended to be funny, usually with a happy ending?Tu: “It’s ___________”
  
  

• Choose the best answer for the following sentence:

  Nga: “What programmer should I watch when I want to study Math, Literature or other subjects?”

  Thuy: “_________ is very good for that”
   

• Choose the best answer for the following sentence:

  Minh: ''What does not belong to mass media?''

   Van: “________”
  
  

• Choose the best answer for the following sentence:

  In spite of his illness, he ____________.
  
  

• Choose the best answer for the following sentence:

  Internet brings us too much information ____________ it makes us passive for we don't have to think much.
  
  

• Choose the word that has the underlined part pronounced differently from the rest: 

  make                 fame                 cake                  bad

• Choose the word that has the underlined part pronounced differently from the rest: 

  fat                     private                       cat                      mad

• Choose the word that has the underlined part pronounced differently from the rest: 

  spend                  send                      lend                   become