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IV/ Duøng töø cho saün trong khung ñeå hoaøn taát ñoaïn vaên. Sau ñoù traû lôøi caùc caâu hoûi.also     empty     near     from     cheapest     expensive     most     teachesJohn Robinson is an English teacher _______ the USA. He _______ English in a high school in Ha Noi. Now he is looking for an apartment _______ the school. there are three _______ apartments. The first one is a big apartment. It’s comfortable, but it is very  _______ . The second one is _______ a lovely apartment, but it’s...
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IV/ Duøng töø cho saün trong khung ñeå hoaøn taát ñoaïn vaên. Sau ñoù traû lôøi caùc caâu hoûi.

also     empty     near     from     cheapest     expensive     most     teaches

John Robinson is an English teacher _______ the USA. He _______ English in a high school in Ha Noi. Now he is looking for an apartment _______ the school. there are three _______ apartments. The first one is a big apartment. It’s comfortable, but it is very  _______ . The second one is _______ a lovely apartment, but it’s quite expensive, too. The last one is smaller than the other two, but it’s the _______ of the three. It has a bright living room, two bedrooms and a large, morden kitchen. Mr. Robinson thinks the third apartment is the _______ suitable for his family.

* Answer the questions :

 

1./ What does Mr. Robinson do?

…………………………………………………?

2./ Where is he from?

…………………………………………………?

3./ What is he looking for?

…………………………………………………?

4./ Which is the cheapest apartment?

…………………………………………………?

5. Which is the most expensive?

…………………………………………………?

6. Describe the most suitable apartment for Mr. Robinson’s family.

…………………………………………………?

 

1
19 tháng 10 2021

IV/ Duøng töø cho saün trong khung ñeå hoaøn taát ñoaïn vaên. Sau ñoù traû lôøi caùc caâu hoûi.

also     empty     near     from     cheapest     expensive     most     teaches

John Robinson is an English teacher ____from___ the USA. He _____teaches__ English in a high school in Ha Noi. Now he is looking for an apartment __ near _____ the school. there are three ___empty____ apartments. The first one is a big apartment. It’s comfortable, but it is very  __expensive_____ . The second one is ____also ___ a lovely apartment, but it’s quite expensive, too. The last one is smaller than the other two, but it’s the ___cheapest ____ of the three. It has a bright living room, two bedrooms and a large, morden kitchen. Mr. Robinson thinks the third apartment is the ___most ____ suitable for his family.

* Answer the questions :

 

1./ What does Mr. Robinson do?

………He is a teacher…………………………………………?

2./ Where is he from?

…………She is from the USA………………………………………?

3./ What is he looking for?

………He is looking for an apartment near the school.…………………………………………?

4./ Which is the cheapest apartment?

…………The third apartment ………………………………………?

5. Which is the most expensive?

…………The first one………………………………………?

6. Describe the most suitable apartment for Mr. Robinson’s family.

………It is the third one…………………………………………?

I. Use the given words to fill in the blank Also   empty    near      from cheapest expensive most teaches John Robinson is an English teacher (34)……………………..the USA. He (35)………………English in a high school in Hanoi. Now he is looking for an apartment (36)…………………the school. There are three (37)……………..apartments. The first one is a big apartment. It is comfortable, but it is very (38)…………….The second one is (39)……………….a lovely apartment, but it is quite expensive, too. The last one is smaller than...
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I. Use the given words to fill in the blank 

Also   empty    near      from cheapest expensive most teaches 

John Robinson is an English teacher (34)……………………..the USA. He (35)………………English in a high school in Hanoi. Now he is looking for an apartment (36)…………………the school. There are three (37)……………..apartments. The first one is a big apartment. It is comfortable, but it is very (38)…………….The second one is (39)……………….a lovely apartment, but it is quite expensive, too. The last one is smaller than the other one, but it is the (40)………………of the three. It has a bright living room, two bedrooms and a large, modern kitchen. Mr.Robinson thinks the third apartment is the (41)……………suitable for his family. 

VIII. Read the passage and then answer the questions 

San Francisco, a very hilly city, is in the San Francisco Bay. Although there are many modern skyscrapers in the city centre, houses in the suburbs are in the styles of the 19th century.  

The celebration of the Chinese New Year in San Franciso’s Chinatown is one thing that you should not miss. 

You can find the best food from around the world: Brazilian, Indian, Japanese, Korean, Mexican, Russian, Thai, Chinese and much more. Don’t forget to visit a jazz club or an outdoor coffee shop to enjoy good coffee and fresh air. You should visit Mission Dolores, an old church built by the Spanish in the 18th century. 

42. Which of the following sentences is true about San Francisco? 

A. San Francisco is not very hilly city 

B. San Francisco is not in the San Francisco Bay 

C. San Francisco has only old houses 

D. San Francisco is a city with modern skyscrapers in the city centre 

43. What is the second paragraph about? 

A. nightlife B. festivals C. scenery D. architecture 

44. Where can we have coffee and enjoy fresh air? 

A. Chinatown B. old houses C. churches D. outdoor coffee shops 

45. Which of the following sentences is NOT true about San Francisco? 

A. San Francisco is in the San Francisco Bay 

B. The celebration of the Chinese New Year in San Francisco’s Chinatown is very interesting 

C. You can only enjoy American and Chinese food in San Francisco 

D. You should enjoy jazz at a jazz club in San Francisco 

46. By whom was Mission Dolores built in the 18th century? 

A. By people from Germany B. By people from Spain 

C. By people from Brazil D. By people from Europe 

IX. Finish the second sentence with the same meaning with the given sentence 

47.It isn’t necessary to finish the work today 

-> You don’t………………………………………………………………………………………………………….. 

48. I have never read such a romantic story before 

-> This is…………………………………………………………………………………………………………. 

49. He prefers golf to tennis 

-> He’d rather………………………………………………………………………………………………………….. 

50. Speaking English fluently is not easy 

-> It…………………………………………………………………………………………….. 

 

1
2 tháng 7 2021

I. Use the given words to fill in the blank 

Also   empty    near      from cheapest expensive most teaches 

John Robinson is an English teacher (34)…………from …………..the USA. He (35)……teaches …………English in a high school in Hanoi. Now he is looking for an apartment (36)…………near      ………the school. There are three (37)……empty………..apartments. The first one is a big apartment. It is comfortable, but it is very (38)…expensive ………….The second one is (39)…………Also   …….a lovely apartment, but it is quite expensive, too. The last one is smaller than the other one, but it is the (40)………cheapest ………of the three. It has a bright living room, two bedrooms and a large, modern kitchen. Mr.Robinson thinks the third apartment is the (41)………most ……suitable for his family. 

VIII. Read the passage and then answer the questions 

San Francisco, a very hilly city, is in the San Francisco Bay. Although there are many modern skyscrapers in the city centre, houses in the suburbs are in the styles of the 19th century.  

The celebration of the Chinese New Year in San Franciso’s Chinatown is one thing that you should not miss. 

You can find the best food from around the world: Brazilian, Indian, Japanese, Korean, Mexican, Russian, Thai, Chinese and much more. Don’t forget to visit a jazz club or an outdoor coffee shop to enjoy good coffee and fresh air. You should visit Mission Dolores, an old church built by the Spanish in the 18th century. 

42. Which of the following sentences is true about San Francisco? 

A. San Francisco is not very hilly city 

B. San Francisco is not in the San Francisco Bay 

C. San Francisco has only old houses 

D. San Francisco is a city with modern skyscrapers in the city centre 

43. What is the second paragraph about? 

A. nightlife B. festivals C. scenery D. architecture 

44. Where can we have coffee and enjoy fresh air? 

A. Chinatown B. old houses C. churches D. outdoor coffee shops 

45. Which of the following sentences is NOT true about San Francisco? 

A. San Francisco is in the San Francisco Bay 

B. The celebration of the Chinese New Year in San Francisco’s Chinatown is very interesting 

C. You can only enjoy American and Chinese food in San Francisco 

D. You should enjoy jazz at a jazz club in San Francisco 

46. By whom was Mission Dolores built in the 18th century? 

A. By people from Germany B. By people from Spain 

C. By people from Brazil D. By people from Europe 

IX. Finish the second sentence with the same meaning with the given sentence 

47.It isn’t necessary to finish the work today 

-> You don’t………need to finish the work today ………………………………………………………………………………………………….. 

48. I have never read such a romantic story before 

-> This is………the first time I have read such a romantic story…………………………………………………………………………………………………. 

49. He prefers golf to tennis 

-> He’d rather……golf than tennis…………………………………………………………………………………………………….. 

50. Speaking English fluently is not easy 

-> It………is not easy to speak E fluently…………………………………………………………………………………….. 

2 tháng 7 2021

thanks

Dùng các từ cho sẵn để hoàn tất đoạn văn , sau đó trả lời các câu hỏi . also - empty - near - from - cheapest - expensive - most - teaches John Robinson is an English teacher _______ the USA. He English in a high school in a Ha Noi. Now he is looking for an apartment _________ the school. There are three ________ apartments. The first one is big apartments . It's comfortable , but it's very __________. The second one is ________ a lovely apartment , but it's quite...
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Dùng các từ cho sẵn để hoàn tất đoạn văn , sau đó trả lời các câu hỏi .

also - empty - near - from - cheapest - expensive - most - teaches

John Robinson is an English teacher _______ the USA. He English in a high school in a Ha Noi. Now he is looking for an apartment _________ the school. There are three ________ apartments. The first one is big apartments . It's comfortable , but it's very __________. The second one is ________ a lovely apartment , but it's quite expensive , too. The last one is smaller than the other two , but it's the _______ of the three. It has a bright living room , two bedrooms and a large , modern kitchen . Mr. Robinson thinks the third apartment is the ______ suitable for his family.

1. What does Mr. Robinson do ?

2. Where is he from ?

3. What is he looking for ?

4. Which is the cheapest apartment ?

5. Which is the most expensive ?

6. Describe the most suitable apartment for Mr. Robinson's family ?

2
5 tháng 6 2017

Dùng các từ cho sẵn để hoàn tất đoạn văn , sau đó trả lời các câu hỏi .

also - empty - near - from - cheapest - expensive - most - teaches

John Robinson is an English teacher _____FROM__ the USA. He English in a high school in a Ha Noi. Now he is looking for an apartment ____NEAR_____ the school. There are three ____EMPTY____ apartments. The first one is big apartments . It's comfortable , but it's very ______EXPENSIVE____. The second one is ____ALSO____ a lovely apartment , but it's quite expensive , too. The last one is smaller than the other two , but it's the ____CHEAPEST___ of the three. It has a bright living room , two bedrooms and a large , modern kitchen . Mr. Robinson thinks the third apartment is the ___MOST___ suitable for his family.

1. What does Mr. Robinson do ?

John Robinson is an English teacher.

2. Where is he from ?

He is from the USA.

3. What is he looking for ?

he is looking for an apartment near the school.

4. Which is the cheapest apartment ?

the third apartment.

5. Which is the most expensive ?

the first apartment

6. Describe the most suitable apartment for Mr. Robinson's family ?

It has a bright living room , two bedrooms and a large , modern kitchen .

5 tháng 6 2017

Dùng các từ cho sẵn để hoàn tất đoạn văn , sau đó trả lời các câu hỏi .

also - empty - near - from - cheapest - expensive - most - teaches

John Robinson is an English teacher ____from___ the USA. He English in a high school in a Ha Noi. Now he is looking for an apartment ____near_____ the school. There are three ___ empty_____ apartments. The first one is big apartments . It's comfortable , but it's very ___expensive_______. The second one is ____also____ a lovely apartment , but it's quite expensive , too. The last one is smaller than the other two , but it's the ___cheapest____ of the three. It has a bright living room , two bedrooms and a large , modern kitchen . Mr. Robinson thinks the third apartment is the ___most___ suitable for his family.

1. What does Mr. Robinson do ? He is an English teacher

2. Where is he from ? He is from the USA

3. What is he looking for ? he is looking for an apartment near the school

4. Which is the cheapest apartment ? The last one is the cheapest apartment

5. Which is the most expensive ? The first one is the most expensive

6. Describe the most suitable apartment for Mr. Robinson's family ?

the most suitable apartment for Mr. Robinson's family is the smallest of the 3 apartments,It has a bright living room , two bedrooms and a large , modern kitchen

4 tháng 10 2018
John Robinson là một giáo viên tiếng Anh đến từ Hoa Kỳ. Anh dạy tiếng Anh ở một trường trung học. Bây giờ anh đang tìm một căn hộ gần trường. Có ba căn hộ trống. Người đầu tiên là một căn hộ lớn. Nó thoải mái, nhưng nó rất đắt tiền. Cái thứ hai cũng là một căn hộ đáng yêu, nhưng nó cũng đắt tiền. Cái cuối cùng nhỏ hơn hai cái còn lại, nhưng nó rẻ nhất là ba. Ngoài ra còn đi kèm phòng khách, 2 phòng ngủ và nhà bếp lớn, hiện đại. Ông Robinson cho rằng căn hộ thứ ba phù hợp nhất cho gia đình ông.
4 tháng 10 2018

=> John Robinson là một giáo viên dạy tiếng Anh đến từ Hoa Kỳ. Ông dạy tiếng Anh ở một trường trung học. Bây giờ ông ấy đang tìm một căn hộ ở gần trường. Có ba căn hộ còn trống. Căn hộ đầu tiên là một căn hộ lớn. Nó thoải mái, nhưng rất đắt. Cái thứ hai cũng là một căn hộ đáng yêu, nhưng nó cũng đắt tiền. Cái cuối cùng nhỏ hơn hai cái kia, nhưng nó là rẻ nhất trong ba căn hộ. Nó có phòng khách, 2 phòng ngủ và nhà bếp lớn, hiện đại. Ông Robinson nghĩ rằng căn hộ thứ ba là phù hợp nhất cho gia đình ông.

2 tháng 10 2018

Read the passage and do the exercise below it:

John Robinson is an English teacher from the USA. He teaches English in a high school. Now he is looking for an apartment near the school. There are three empty apartment. The first one is a big apartment. It's comfortable, but it's very expensive. The second one is also a lovely apartment, but it's expensive, too. The last one is smaller than the other two, but it's the cheapest of three. It has a living room, two bedrooms and a large, modern kitchen. Mr Robinson thinks the third apartment is the most suitable for his family.

Answer the question:

1. Is the last one the most expensive of three?

............No,it isn't...........

2. Which apartment does he chose of three?

........he chooses the third apartment.................

2 tháng 10 2018

John Robinson is an English teacher from the USA. He teaches English in a high school. Now he is looking for an apartment near the school. There are three empty apartment. The first one is a big apartment. It's comfortable, but it's very expensive. The second one is also a lovely apartment, but it's expensive, too. The last one is smaller than the other two, but it's the cheapest of three. It has a living room, two bedrooms and a large, modern kitchen. Mr Robinson thinks the third apartment is the most suitable for his family.

Answer the question:

1. Is the last one the most expensive of three?

.....No, it isn't....

2. Which apartment does he chose of three?

......He choses the third apartment..

20 tháng 10 2021

bài đọc đôu á?

20 tháng 10 2021

dat cau hoi cho cau tra loi

Dùng các từ có sẵn trong khung để hoàn thành đoạn văn , sau đó trả lời các câu hỏi Also empty near from cheapest expensive most teaches John Robinson is an English teacher(1) ____ the USA . He (2) ___ English in a high school in Ha Noi. Now he is looking for an apartment(3)____ the school . There are three(4)___ apartments . The first one is a big apartment . It's comfortable , but it's very (5)___ The second one is (6)____ a lovely...
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Dùng các từ có sẵn trong khung để hoàn thành đoạn văn , sau đó trả lời các câu hỏi

Also empty near from cheapest expensive most teaches

John Robinson is an English teacher(1) ____ the USA . He (2) ___ English in a high school in Ha Noi. Now he is looking for an apartment(3)____ the school . There are three(4)___ apartments . The first one is a big apartment . It's comfortable , but it's very (5)___ The second one is (6)____ a lovely apartment , but it's quite expensive , too . The last one is smaller than the other two , but it's the (7)____ of the three . It has a bright living room , two bedrooms and a large , modern kitchen. Mr.Robinson thinks the third apartment is the (8)_____ suitable for his family .

1 What does Mr.Robinson do ?

_________________________

2 where is he from ?

_________________________

3 what is he looking for ?

__________________________

4 Which is the cheapest apartment ?

5 which is the most expensive ?

6 describe the most suitabe apartment for Mr.Robinson's family ?

Các bạn giúp mình với nhé =)) cảm ơn nhiều ạ ngaingung

1
25 tháng 6 2017

Dùng các từ có sẵn trong khung để hoàn thành đoạn văn , sau đó trả lời các câu hỏi

Also empty near from cheapest expensive most teaches

John Robinson is an English teacher(1) __from__ the USA . He (2) _teaches__ English in a high school in Ha Noi. Now he is looking for an apartment(3)__near__ the school . There are three(4)_empty__ apartments . The first one is a big apartment . It's comfortable , but it's very (5)_expensive__ The second one is (6)__also__ a lovely apartment , but it's quite expensive , too . The last one is smaller than the other two , but it's the (7)__cheapest__ of the three . It has a bright living room , two bedrooms and a large , modern kitchen. Mr.Robinson thinks the third apartment is the (8)__most___ suitable for his family .

1 What does Mr.Robinson do ?

He is an English teacher.

2 where is he from ?

He is from the USA.

3 what is he looking for ?

He is looking for an apartment near the school.

4 Which is the cheapest apartment ?

The third apartment is the cheapest apartment.

5 which is the most expensive ?

The first apartment is the most expensive.

6 describe the most suitabe apartment for Mr.Robinson's family ?

It has a bright living room , two bedrooms and a large , modern kitchen.

28 tháng 9 2018

Read the passage carefully then do the exercise below:

Mr. John Robinson is an English teacher. He's from the U. S. A. He's looking for an apartment for his family to live in Ha Noi. He's asking Mr. Nhat his Vietnamese friends, for advice. Mr. Nhat shows him 3 apartment at number 27,40 and 79. The apartment at number 79 is the biggest and the most expensive but the on at number 27 is the most suitable for him because it's the newest and the cheapest. It has 2 bedrooms and a large, modern bathroom and a kitchen.

1.answer the question:

1. What does Mr. Robinson do?

Mr. John Robinson is an English teacher

2. Who is Mr. Nhat?

Mr. Nhat is Mr.John's Vietnamese friends

3. Which is the most expensive apartment?

The apartment at number 79 is (the biggest) and the most expensive

4. Which is the most suitable for Mr. John?

The apartment at number 27 is the most suitable

28 tháng 9 2018

1.He's an English teacher.

2.He's Mr. Robinson's friend.

3.The apartment at number 79

4.The apartment at number 27

19 tháng 10 2021

1 on - in

2 of

3 on

4 to

5 in

6 from - to

7 on

Làm ít cũng đc  ^^cảm ơnCâu 17. Tỉ lệ về thể tích của metan và thể tích oxi trong hỗn hợp gây nổ mạnh là1 : 2.                B.  2 : 1.            C. 1 : 4.                    D. 4 : 1.         Câu 18:  Choïn caâu ñuùng trong caùc caâu sau:Metan coù nhieàu trong khí quyeån                     Metan coù nhieàu trong caùc moû khí, moû daàu, moû thanMetan coù nhieàu trong nöôùc bieånMetan coù nhieàu trong nöôùc ao.Câu 19: Đốt cháy hoàn toàn m gam một hợp chất...
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Làm ít cũng đc  ^^cảm ơn

Câu 17. Tỉ lệ về thể tích của metan và thể tích oxi trong hỗn hợp gây nổ mạnh là

1 : 2.                B.  2 : 1.            C. 1 : 4.                    D. 4 : 1.         

Câu 18:  Choïn caâu ñuùng trong caùc caâu sau:

Metan coù nhieàu trong khí quyeån                     

Metan coù nhieàu trong caùc moû khí, moû daàu, moû than

Metan coù nhieàu trong nöôùc bieån

Metan coù nhieàu trong nöôùc ao.

Câu 19: Đốt cháy hoàn toàn m gam một hợp chất hữu cơ Y ( có chứa 2 nguyên tố C, H) thu được 6,72 lit CO2

( đktc) và 0,5 mol H2O. Giá trị của m là

A.  2,3 g.                   B.  4,6 g .                  C. 11,1 g.                        D. không xác định.

Câu 20: Chaát naøo sau đây  chieám haøm löôïng cacbon cao nhaát ?

A. C4H9OH                B. C3H7OH                            C. C2H5OH                            D. CH3OH

ánh sáng

Câu 21: Phản ứng nào sau đây được viết  đúng :

 

A.   

ánh sáng

CH4 +   Cl2                        CH2Cl2 + H2

 

B.    

ánh sáng

CH4 +   Cl2                        CH2 + 2HCl

 

C.     2CH4 +   Cl2                      CH3Cl + H2

ánh sáng

CH4 +   Cl2                                          CH3Cl + HCl

 

Câu 22: Dãy chất nào sau đây là hợp chất hữu cơ :

A.    C2H4O2, NaHCO3, C6H5Br, CaCO3.                       C. CH3Cl, CaCl2, C2H4, C2H4O2.

B.     C2H4O2, C6H6, C2H5OH, C6H6Cl6.                          D. C2H4, CH2Cl2, Ca(HCO3)2, C2H6.

Câu 23: Dãy các hợp chất nào sau đây là hợp chất hữu cơ ?

A. CH4, C2H6, CO2.         B. C6H6, CH4, C2H5OH.        C. CH4, C2H2, CO.         D. C2H2, C2H6O, CaCO3.

Câu 24: Dãy các chất nào sau đây đều là  hiđrocacbon ?

A. C2H6, C4H10, C2H4.                        C. C2H4, CH4, C2H5Cl.       

 B. CH4, C2H2, C3H7Cl.                      D. C2H6O, C3H8, C2H2.

Câu 25: Dãy các chất nào sau đây đều là dẫn xuất của  hiđrocacbon ?

A. C2H6O, CH4, C2H2.                        C. C2H6O, C3H7Cl, C2H5Cl.           

B. C2H4, C3H7Cl, CH4.                       D. C2H6O, C3H8, C2H2.

Câu 26: Trong các chất sau: CH4, CO2, C2H4, Na2CO3, C2H5ONa có

A. 1 hợp chất hữu cơ và 4 hợp chất vô cơ.                           B. 2 hợp chất hữu cơ và 3 hợp chất vô cơ.

C. 4 hợp chất hữu cơ và 1 hợp chất vơ cơ.                           D. 3 hợp chất hữu cơ và 2 hợp chất vô cơ.

Câu 27: Thành phần phần trăm về khối lượng của các nguyên tố C, H, O trong C2H6O lần lượt là

A. 52,2%; 13%; 34,8%.                         C. 13%; 34,8%; 52,2%.             

B. 52,2%; 34,8%; 13%.                          D. 34,8%; 13%; 52,2%

Câu 28 : Công thức cấu tạo của hợp chất hữu cơ cho biết:

A.    Thành phần nguyên tố

B.     Thành phần của phân tử, trật tự và cách thức liên kết của các nguyên tử trong phân tử

C.     Khối lượng nguyên tử

D. Số lượng nguyên tử mỗi nguyên tố

Câu 29: Nguyên tử cacbon có thể liên kết trực tiếp với nhau tạo thành các dạng mạch cacbon là

A. mạch vòng.                                                   C. mạch vòng, mạch thẳng, mạch nhánh.          

B. mạch thẳng, mạch nhánh.                             D. mạch nhánh.

Câu 30 Hãy cho biết chất nào sau đây trong phân tử chỉ có liên kết đơn ? 

A. C6H6.                       B. C2H4.                                 C. CH4 .                       D. C2H2.

Câu 31: Số liên kết đơn trong phân tử C4H10 là:        A. 10.              B. 13.                C. 14               .D. 12.

Câu 32: Số công thức cấu tạo của C4H10 là                A. 3.                 B. 5.               C. 2.               D. 4.

Câu 33: hiđrocacbon (X) chứa 81,82% cacbon. Công thức phân tử của (X) là

A. C3H8.                      B. C3H6.                      C. C2H4.                                  D. C4H10.

Câu 34: Chất có phần trăm khối lượng cacbon lớn nhất là    

 A. CH4.                      B. CH3Cl.                                  C. CH2Cl2.                             D. CHCl3.

Câu 35: Phản ứng đặc trưng của metan là

A. phản ứng cộng.                     B. phản ứng thế.                 C. phản ứng trùng hợp.                D. phản ứng cháy.

Câu 36 : Nhóm chất nào sau đây chỉ tham gia phản ứng cộng:

C2H2 , CH4                  B. C2H2, C6H6             C. C2H2, C2H4                         D. C2H2 , C2H6                      

Câu 37: Một hidrocacbon mà trong thành phần phân tử chứa 75% cacbon theo khối lượng. Hidrocacbon có công thức hóa học là:

A.    C4H10                 B.  C2H4                     C. C6H6                               D. CH4

Câu 38 .Hợp chất hữu cơ có số nguyên tử hiđro bằng hai lần số nguyên tử cacbon và làm mất màu dung dịch brom. Hợp chất đó là

A. metan                    B. etilen                       C. axetilen                   D. benzen

Câu 39: Cho các chất có công thức sau:                     1) C6H6                        2) CH2 = CH - CH3         

3) CH2 = CH- CH= CH2                     4) CH

Số chất làm mất màu dung dịch Br2 là:

A. 1                             B. 2                             C. 3                             D. 4

Câu 40: Hợp chất hữu cơ có số nguyên tử hiđro bằng số nguyên tử cacbon, tham gia phản ứng cộng và tham gia phản ứng thế nhưng không làm mất màu dung dịch brom. Hợp chất đó là

A. metan                     B. axetilen                   C. etilen                       D. benzen

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5 tháng 3 2022

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