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• Công thức của triolein là         

Câu 1:

Công thức của triolein là         

A.

A: (CH3[CH2]16COO)3C3H5

B.

B: (CH3[CH2]7CH=CH[CH2]5COO)3C3H5

C.

C: (CH3[CH2]7CH=CH[CH2]7COO)3C3H5

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Đáp án C Công thức của triolein là (CH3[CH2]7CH=CH[CH2]7COO)3C3H5  

 

VẬY ĐÁP ÁN ĐÚNG LÀ C

 

 

D.

D: (CH3[CH2]14COO)3C3H5

Những câu hỏi này đến từ bài kiểm tra này. Bạn có muốn thực hiện bài kiểm tra thử không?

Bài tập trắc nghiệm 15 phút Khái niệm, cấu tạo, đồng phân, danh pháp Lipit - Hóa học 12 - Đề số 4

• 15 phút
• 10 câu hỏi

Làm bài kiểm tra

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• Trong dầu mỡ động vật, thực vật có  

• Công thức phân tử của tristearin là         

• Công thức nào sau đây có thể là công thức của chất béo lỏng?

• Trieste của glixerol với chất nào sau đây là chất béo         

• Công thức của triolein là         

• Thủy phân hoàn toàn 444 gam một lipit thu được 46 gam glixerol (glixerin) và hai loại axit béo. Hai loại axit béo đó là (cho H=1, C=12, O=16)         

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• Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 473 to 480.

  How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.

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  Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billions years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.

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