2,8 gam anken A làm mất màu vừa đủ dung dịch chứa 8g Br₂. Hiđrat hóa A chỉ thu được một ancol duy nhất.
A có tên là

Chia sẻ

Một số câu hỏi khác cùng bài thi.

• Cho 4,48 lít hỗn hợp khí CH₄ và C₂H₄ đi qua bình chứa dung dịch nước brom dư. Sau phản ứng thấy khối lượng bình tăng 1,4 gam. Thể tích các khí đo ở (đktc). Thành phần phần trăm theo thể tích mỗi khí là:
  

• C₅H₁₀ có 3 đồng phân cấu tạo anken mạch cacbon phân nhánh có tên phù hợp là :         

• Ở điều kiện thích hợp, anken tác dụng với chất nào sau đây tạo thành ancol?
  

• Oxi hoá etilen bằng dung dịch KMnO₄ thu được sản phẩm là:                         

• Phản ứng đặc trưng của các hiđrocacbon không no là
  
• Hiện nay PVC được điều chế theo sơ đồ sau: C₂H₄ → CH₂Cl–CH₂Cl → C₂H₃Cl → PVC.
  Nếu hiệu suất toàn bộ quá trình đạt 70% thì lượng C₂H₄ cần dùng để sản xuất 1250 kg PVC là
  
• Để phân biệt hai khí propan và propilen người ta thường dùng ?
  
• Anken X có công thức cấu tạo: CH₃CH=C(CH₃)CH₂CH₃. Tên của X là
  

• Cho hỗn hợp tất cả các đồng phân mạch hở của C₄H₈ tác dụng với H₂O (H⁺,t^o) thu được tối đa bao nhiêu sản phẩm cộng ?                                  

• 2,8 gam anken A làm mất màu vừa đủ dung dịch chứa 8g Br₂. Hiđrat hóa A chỉ thu được một ancol duy nhất.
  A có tên là
  
• Đốt cháy hoàn toàn hỗn hợp 2 anken kế tiếp thu được 4,86 gam H₂O. Cho sản phẩm cháy qua bình chứa Ca(OH)₂ dư thu được bao nhiêu gam kết tủa?
  
• Phản ứng nào sau đây tạo thành benzen?
  

• Đốt cháy hoàn toàn 0,05 mol một anken A thu được 4,48 lít CO₂ (đktc). Cho A tác dụng với dd HBr chỉ cho một sản phẩm duy nhất. CTCT của A là

• Hỗn hợp X gồm 2 anken là đồng đẳng liên tiếp có thể tích 4,48 lít (ở đktc). Nếu cho hỗn hợp X đi qua bình đựng nước brom dư, khối lượng bình tăng lên 9,8g. % thể tích của một trong 2 anken là
  
• Hợp chất nào sau đây thuộc loại hidrocacbon không no?
  
• Ở điều kiện thích hợp, anken tác dụng với chất nào sau đây tạo thành ankan?
  
• Etilen là tên gọi thông thường của chất nào sau đây?
  

• Nhóm anken nào sau đây khi hợp nước đều cho duy nhất một sản phẩm ankanol?                         

• Một hỗn hợp X có thể tích 11,2 lít (đktc), X gồm 2 anken đồng đẳng kế tiếp nhau. Khi cho X qua nước Br₂ dư thấy khối lượng bình Br₂ tăng 15,4g. Xác định CTPT và số mol mỗi anken trong hỗn hợp X.
  

• Tên gọi của anken (sản phẩm chính) thu được khi đun nóng ancol có công thức (CH₃)₂CHCH(OH)CH₃ với dung dịch H₂SO₄ đặc là:                 

• Cho 2,8 (lít) hỗn hợp etilen và metan đi qua bình chứa nước brôm thấy có 16 g brôm tham gia phản ứng. Thành phần phần trăm về thể tích của khí etilen có trong hỗn hợp. Biết các khí đo ở đktc.
  
• 2,8 gam anken A làm mất màu vừa đủ dung dịch chứa 8g Br₂. Hiđrat hóa A chỉ thu được một ancol duy nhất.
  A có tên là
  
• Trong phòng thí nghiệm etilen được điều chế bằng cách:
  
• Oxi hóa hoàn toàn 0,56 lít (đktc) một anken (X). Sản phẩm sinh ra được dần qua bình chứa dung dịch Ca(OH)₂ dư thu được 7,5 gam kết tủa. Công thức phân tử của anken (X) đem đốt là:
  
• Tính chất hóa học đặc trưng của anken là
  

Một số câu hỏi khác có thể bạn quan tâm.

•  

  Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 46 to 50:

  Here are tips that help succeed in your job interview: Always arrive early. If you do not know (46) _________ the organization is located, call for exact directions (47) ____________ advance. Leave some extra time for any traffic, parking, or unexpected events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give yourself the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (48) _________ to everyone as soon as you walk in the door. Wear a professional business suit. This point should be emphasized enough. First (49) ____________ are extremely important in the interview process. Women should (50)_________ wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is also important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is an informal environment, call before and ask. Regardless, you can never be overdressed if you are wearing a tailored suit.

  Question 50:

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 46 to 50:

  Here are tips that help succeed in your job interview: Always arrive early. If you do not know (46) _________ the organization is located, call for exact directions (47) ____________ advance. Leave some extra time for any traffic, parking, or unexpected events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give yourself the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (48) _________ to everyone as soon as you walk in the door. Wear a professional business suit. This point should be emphasized enough. First (49) ____________ are extremely important in the interview process. Women should (50)_________ wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is also important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is an informal environment, call before and ask. Regardless, you can never be overdressed if you are wearing a tailored suit.

  Question 49:

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 46 to 50:

  Here are tips that help succeed in your job interview: Always arrive early. If you do not know (46) _________ the organization is located, call for exact directions (47) ____________ advance. Leave some extra time for any traffic, parking, or unexpected events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give yourself the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (48) _________ to everyone as soon as you walk in the door. Wear a professional business suit. This point should be emphasized enough. First (49) ____________ are extremely important in the interview process. Women should (50)_________ wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is also important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is an informal environment, call before and ask. Regardless, you can never be overdressed if you are wearing a tailored suit.

  Question 48:

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 46 to 50:

  Here are tips that help succeed in your job interview: Always arrive early. If you do not know (46) _________ the organization is located, call for exact directions (47) ____________ advance. Leave some extra time for any traffic, parking, or unexpected events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give yourself the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (48) _________ to everyone as soon as you walk in the door. Wear a professional business suit. This point should be emphasized enough. First (49) ____________ are extremely important in the interview process. Women should (50)_________ wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is also important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is an informal environment, call before and ask. Regardless, you can never be overdressed if you are wearing a tailored suit.

  Question 47:

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5:

  The warming of the Earth is caused by exhaust gas from automobile engines, fatories and power (1)_________. Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heart (2) _________getting out. It works like a greenhouse, that’s why we call (3) _________the Green House effect. Because of this effect, the Earth is getting warmer all the time. This (4) _________in temperature will cause big changes to the world’s climate. The sea level will increase as the ice (5) _________the poles will melt.  

  Question 5:    

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5:

  The warming of the Earth is caused by exhaust gas from automobile engines, fatories and power (1)_________. Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heart (2) _________getting out. It works like a greenhouse, that’s why we call (3) _________the Green House effect. Because of this effect, the Earth is getting warmer all the time. This (4) _________in temperature will cause big changes to the world’s climate. The sea level will increase as the ice (5) _________the poles will melt.  

  Question 4:            

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5:

  The warming of the Earth is caused by exhaust gas from automobile engines, fatories and power (1)_________. Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heart (2) _________getting out. It works like a greenhouse, that’s why we call (3) _________the Green House effect. Because of this effect, the Earth is getting warmer all the time. This (4) _________in temperature will cause big changes to the world’s climate. The sea level will increase as the ice (5) _________the poles will melt.  

  Question 3:    

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5:

  The warming of the Earth is caused  by exhaust gas from automobile engines, fatories and power (1)_________. Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heart (2) _________getting out. It works like a greenhouse, that’s why we call (3) _________the Green House effect. Because of this effect, the Earth is getting warmer all the time. This (4) _________in temperature will cause big changes to the world’s climate. The sea level will increase as the ice (5) _________the poles will melt.  

  Question 2:        

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5:

  The warming of the Earth is caused by exhaust gas from automobile engines, fatories and power (1)_________. Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heart (2) _________getting out. It works like a greenhouse, that’s why we call (3) _________the Green House effect. Because of this effect, the Earth is getting warmer all the time. This (4) _________in temperature will cause big changes to the world’s climate. The sea level will increase as the ice (5) _________the poles will melt.  

  Question 1:         

• Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:

                                                           The threat to the Environment

  Nowadays people are more aware that wildlife all over the world is in danger. Many species of animals will become (31)_____ if we do not make an effort to protect them. There are many reasons for this. In some cases, animals are (32) _____for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught alive and sold as pets. For many animals and birds the problem is that their habitat - the place where they live - is (33) _____ . More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them grow better crops, but these chemicals pollute the environment and (34) _____ wildlife. The most successful animals on earth - human beings - will soon be the only ones (35) _____ , unless we can solve this problem.  

  Question 35: