Este X Mạch Hở Có Công Thức Phân Tử Là C4H6O2. Thủy Phân X ...

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• Este X mạch hở có công thức phân tử là C4H6O2.

Câu 1:

Este X mạch hở có công thức phân tử là C4H6O2. Thủy phân X trong môi trường axit thu được hai chất hữu cơ no, đơn chức. Hãy cho biết X có bao nhiêu CTCT?

A.

2

B.

3

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3. HCOO-C(CH3)=CH2; HCOOCH=CH-CH2; CH3COOCH=CH2

C.

1

D.

4

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

Bài tập trắc nghiệm chương 1: Este - Lipit - hóa học 12 có lời giải chi tiết - Đề số 3

• 20 phút
• 10 câu hỏi

Làm bài kiểm tra

Một số câu hỏi từ cùng một bài kiểm tra

• 7,04 gam một este đơn chức tác dụng vừa đủ với 80 (ml) dung dịch NaOH 1M, thu được 2 chất X và Y. Đốt cháy hết m gam Y được 1,32 gam CO2 và 0,72 gam H2O. Oxi hoá Y được chất có khả năng phản ứng tráng bạc. Công thức thu gọn của X, Y lần lượt là:

• Khi thủy phân chất béo trong môi trường kiềm thì thu được muối của axit béo vá

• Chất hữu cơ X (chứa vòng benzen) có công thức là CH3COOC6H4OH. Khi đun nóng, a mol X tác dụng được với tối đa bao nhiêu mol NaOH trong dung dịch?

• Có các nhận định sau:

  (1) Este là sản phẩm của phản ứng giữa axit cacboxylic và ancol

  (2) este là hợp chất hữu cơ trong phân tử chứa nhóm-COO

  (3) Este no, đơn chức, mạch hở có công thức phân tử CnH2nO2, với n≥2

  (4) Hợp chất CH3COOC2H5 thuộc loại este

  Các nhận định đúng là:

• Cho m gam HCOOCH3 phản ứng hết với dung dịch NaOH(dư), đun nóng thu được 6,8 gam muối HCOONa. Giá trị của m là

• Este X mạch hở có công thức phân tử là C4H6O2. Thủy phân X trong môi trường axit thu được hai chất hữu cơ no, đơn chức. Hãy cho biết X có bao nhiêu CTCT?

• Số đồng phân ứng với công thức phân tử C3H6O2 là

• Xà phòng hoá hoàn toàn 356 (gam) chất béo trung tính thu được 36,8 (gam) glixerol. Tên gọi của chất béo là:

• Đun nóng 6,0 gam CH3COOH với 6,0 gam C2H5OH (có H2SO4 làm xúc tác, hiệu suất phản ứng este hóa bằng 50%). Khối lượng este tạo thành là:

• Cho các câu sau:

  1) Chất giặt rửa là những chất khi dùng cùng với nước thì có tác dụng làm sạch các chất bẩn bám trên các vật rắn mà không gây ra các phản ứng hoá học với các chất đó.

  2) Chất tẩy màu làm sạch các vết màu bẩn nhờ các phản ứng hoá học.

  3) Chất kị nước tan tốt trong dầu mỡ.

  4) Chất giặt rửa tổng hợp là hỗn hợp các muối natri hoặc kali của các axit béo.

  Phương án nào gồm các câu đúng là?

Một số câu hỏi khác bạn có thể quan tâm

• 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.

  Marianne Moore (1887-1972) once said that her writing could be called poetry only because there was no other name for it. Indeed her poems appear to be extremely compressed essays that happen to be printed in jagged lines on the page. Her subjects were varied: animals, laborers, artists, and the craft of poetry. From her general reading came quotations that she found striking or insightful. She included these in her poems, scrupulously enclosed in quotation marks, and sometimes identified in footnotes. Of this practice, she wrote, "Why many quotation marks?" I am asked ... When a thing has been so well that it could not be said better, why paraphrase it? Hence, my writing is, if not a cabinet of fossils, a kind of collection of flies in amber." Close observation and concentration on detail and the methods of her poetry.

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  What does Moore refer to as "flies in amber" (paragraph 1)?

• They advised me _____ visiting the troubled south of the country.

• 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 23 to 27.

  CHESS

  Chess, often (23)______ to as the Royal Game, is the oldest of all board games which do not contain an element of chance.

  The origins of chess are uncertain, (24)______ there are a number of legends regarding its invention. One story says that it was King Solomon who invented chess, another that it was the Greek god Hermes, and yet another that the Chinese mandarin Han-Sing was responsible for its creation. In fact, chess almost certainly originated in India in the sixth or seventh century AD. The game’s popularity then spread quickly through Persia (now known as Iran) and from there came to Europe. The first documented reference to chess in literature is in a Persian romance which was written about 600 AD.

  It is (25)_______ the word ‘chess’ comes from ‘shah’, the Persian word for ‘king’ and that ‘checkmate’, the game’s winning (26)_______, comes from the phrase ‘shah mat’, (27)______ ‘the king is dead’.

  The rules and pieces used in the game have undergone changes over the centuries. Modem chess owes much to the Spaniard Lopez de Segura, who in 1561 wrote the first book on how to play the game. In it, he introduced the concept of ‘castling’, which had not been part of the game until then.

  Điền vào ô 23.

• 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 3 to 9.

          Most people can remember a phone number for up to thirty seconds. When this short amount of time elapses, however, the numbers are erased from the memory. How did the information get there in the first place? Information that makes its way to the short term memory (STM) does so via the sensory storage area. The brain has a filter which only allows stimuli that is of immediate interest to pass on to the STM, also known as the working memory.

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  The word “elapses” in paragraph 1 is closest in meaning to ______.

• Amino axit là hợp chất hữu cơ trong phân tử

• 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 28 to 35.

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  In Russia, in lieu of giving birthday presents, the guest of honor receives a single flower or an unwrapped bouquet. Floral arrangements or baskets are not given. Russians celebrate a holiday known as Woman's Day. Traditional gifts include red roses, hyacinths or tulips. When there is a funeral or other occasion where someone wishes to express sympathy, carnations, lilies or roses are given in circular configurations, which signify the transition of birth, life and death to rebirth. In this instance, the color of choice is commonly yellow. For joyous occasions, arrangements and bouquets generally contain an odd number of flowers.

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