A có công thức phân tử trùng với công thức đơn giản. Khi phân tích A thu được kết quả: 50% C, 5,56% H, 44,44%O theo khối lượng. Khi thuỷ phân A bằng dung dịch H₂SO₄ loãng thu được 2 sản phẩm đều tham gia phản ứng tráng bạc. Công thức cấu tạo của A là:

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  separate                  crocodile                    banana                     mystery

• Choose a word that has different stress pattern:

  Australian             European                 American                Canadian 

• Choose the best answer for the following sentence:

  The traffic was heavy, _____________ we arrived late for the meeting.
  
  

• Choose the best answer for the following sentence:

  He wanted to go on holiday. ______________ , he did not have enough money.
  
  

• Choose the best answer for the following sentence:

  Tom didn’t study hard last semester. ______________, he failed the final test.
  
  

• Choose the best answer for the following sentence:

  Jack sold his motorbike, _________________ he could pay for a holiday.
  
  

• Choose the best answer for the following sentence:

  It was raining. ____________, we would have taken the children to the beach.
  
  

• Choose the best answer for the following sentence:

  There are different types of ____________ in the Simpson Desert.
  
  

• Choose the best answer for the following sentence:

  Hummock grasses _______________ in loose sand on the crest.
  
  

• Choose the best answer for the following sentence:

  Was the desert named ______________ Simpson in 1929?