Cho 15,6 (g) hỗn hợp hai ancol no đơn chức, kế tiếp nhau trong dãy tác dụng hết với 9,2 (g) Na, thu được 24,5 (g) chất rắn. Hai ancol đó là:

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Một số câu hỏi khác có thể bạn quan tâm.

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

  jealous                 bread                 death                       mean

• Choose a word that has different stress pattern:

  announce                 office                    fasten                      hobby

• Choose the best answer for the following sentence:

  After my uncle ploughed the field, he _________ to make the soil smooth.
  
  

• Choose the best answer for the following sentence:

  Hoang: "I walked very slowly because the path was only as wide as my two boots. I wanted to have a rest but there was no where to sit"

  Binh: "You really _______________ "
  
  

• Choose the best answer for the following sentence:

  The house is on fire! Let’s call the ____________ .
  
  

• Choose the best answer for the following sentence:

  The name of the film was on the ____________ of my tongue but I couldn’t speak it out.
  
  

• Choose the best answer for the following sentence:

  When ____________________ sport?
  
  

• Choose the best answer for the following sentence:

  Playing tennis one hour a day is ____________ .
  
  

• Choose the best answer for the following sentence:

  _____________ the right sight of a person’s brain is dominant, that person is left-handed.
  
  

• Choose the best answer for the following sentence:

  When I was at secondary school, I ______________ games with my neighbor.