Tính Oxi Hóa Của Các Halogen Giảm Dần Theo Thứ Tự Sau

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• Tính oxi hóa của các halogen giảm dần theo thứ tự sau: (theo chiều từ trái sang phải)

Câu 1: Tính oxi hóa của các halogen giảm dần theo thứ tự sau: (theo chiều từ trái sang phải) A. F2, Cl2, Br2, I2 B. Cl2, Br2, I2, F2 C. I2, Br2, Cl2, F2 D. F2, Cl2, I2, Br2

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Bài tập trắc nghiệm 15 phút Khái quát về nhóm Halogen - CHUYÊN ĐỀ 5: NHÓM HALOGEN - Hóa học 10 - Đề số 5

• 15 phút
• 10 câu hỏi

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Một số câu hỏi từ cùng một bài kiểm tra

• Cho các phát biểu sau 1, Tính chất hóa học cơ bản của các halogen là tính oxi hoá mạnh 2, Đi từ flo đến iot, nhiệt độ sôi, nhiệt độ nóng chảy của các halogen tăng dần 3, Trong hợp chất, các halogen có các số oxi hóa: -1, +1, +3, +5, +7 4, Trong tự nhiên, halogen chủ yếu tồn tại dạng đơn chất 5, Ở điều kiện thường, brom lỏng màu nâu đỏ, dễ bay hơi và thăng hoa 6,Muối iot dùng phòng bệnh bướu cổ do thiếu iot Số phát biểu đúng là
• Các nguyên tố halogen được sắp xếp theo chiều giảm giá trị độ âm điện từ trái sang phải.
• Chất có tính oxi hóa mạnh nhất trong nhóm halogen là
• Dãy chất nào sau đây được xếp theo chiều tăng dần tính khử
• Ion nào có tính khử mạnh nhất
• Tính oxi hóa của các halogen giảm dần theo thứ tự sau: (theo chiều từ trái sang phải)
• Các nguyên tố nhóm halogen có cấu hình electron lớp ngoài cùng là
• Phương pháp để điều chế khí F2 trong công nghiệp là:
• Không tìm thấy đơn chất halogen trong tự nhiên bởi chúng có
• Nguyên tố halogen nào luôn có số oxi hóa âm trong hợp chất?

Một số câu hỏi khác bạn có thể quan tâm

• Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word (s) in each of the following questions.

  I don't like that man. There is a sneaky  look on his face.

• Đặt tính rồi tính:

  92 508 – 22 429

• 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.

  People have been donating blood since the early twentieth century to help accident victims and patients undergoing surgical procedures. Usually a pint of whole blood is donated, and it is then divided into platelets, white blood cells, and red blood cells. People can donate blood (for red blood cells) about once every two months. Transfusing the blood from the donor to the recipient is straightforward. It involves taking the blood from a donor‟s arm vein by means of a hypodermic syringe. The blood flows through a plastic tube to a collection bag or bottle that contains sodium citrate, which prevents the blood from clotting.

  When the blood is given to a patient, a plastic tube and hypodermic needle are connected to the recipient's arm. The blood flows down from the container by gravity. This is a slow process and may last as long as 2 hours to complete the infusion of blood into the recipient. The patient is protected from being infected during the transfusion. Only sterile containers, tubing, and needles are used, and this helps ensure that transfused or stored blood is not exposed to disease causing bacteria. Negative reactions to transfusions are not unusual. The recipient may suffer an allergic reaction or be sensitive to donor leukocytes. Some may suffer from an undetected red cell incompatibility. Unexplained reactions are also fairly common. Although they are rare, other causes of such negative reactions include contaminated blood, air bubbles in the blood, overloading of the circulatory system through administration of excess blood, or sensitivity to donor plasma or platelets. Today, hospitals and blood banks go to great lengths to screen alt blood donors and their blood. All donated blood is routinely and rigorously tested for diseases, such as HIV, hepatitis B, and syphilis.

  When the recipient is a newborn or an infant, the blood is usually irradiated to eliminate harmful elements. Donated blood is washed, and the white blood cells and platelets removed. Storing the blood sometimes requires a freezing process. To freeze the red blood cells, a glycerol solution is added. To unfreeze the, the glycerolis removed. The ability to store blood for long periods has been a boon to human health

  All of the following are mentioned as potential negative reactions to transfusion EXCEPT

• We knew it was time to leave the club when a fight ________ between guys at the bar.

• 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 36 to 43.

  The difference between the nuclear family and the extended family is that a nuclear family refers to a single basic family unit of parents and their children, whereas the extended family refers to their relatives such as grandparents, in-laws, aunts and uncles, etc. In many cultures, and particularly indigenous societies, the latter is the most common basic form of social organization.

  A nuclear family is limited, according to Kristy Jackson of Colorado State University, to one or two parents (e.g. a father and mother) and their own child, or children, living together in a single house or other dwellings. In anthropology, they only must be related in this fashion; there is no upper or lower limit on the number of children in a nuclear family.

  The extended family is a much more nebulous term, but in essence refers to kin or relations not covered by the above definition. In historical Europe and Asia as well as in Middle Eastern, African, and South American Aboriginal cultures, extended family groups were typically the most basic unit of social organization, The term can differ in specific cultural settings, but generally includes people related in age or by lineage.

  Anthropologically, the term "extended family" refers to such a group living together in a household, often with three generations living together (grandparents, parents, and children) and headed in patriarchal societies by the eldest man or by some other chosen leadership figure. However, in common parlance, the term "extended family" is often used by people simply to refer to their cousins, aunts, uncles, and so on, even though they are not living together in a single group.

  What is the passage mainly about?

• 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 34.

  Rain pounded down on the roof. I was trying to read but the sound was too loud. I couldn’t help myself from being a little grumpy. I wanted to be outside playing, but the rain was keeping me inside.

  My mom had gone to the grocery store, and my dad was spending Saturday at the office. I had planned to spend the day hiking, but Mother Nature decided that today was the perfect day for rain.

  It meant that I would have to entertain myself. I spent most of the morning playing with my stuffed animals and reading. I was sitting next to the window staring out when I got a strange idea: why not just go outside anyway?

  I put on my boots and a big raincoat and stepped out into the wet world. It was raining hard but it wasn’t cold. All I could hear were raindrops and the wind. I decided to go on my hike anyway.

  My feet didn’t make any sound on the wet ground and the forest seemed different. I went to my favourite place and sat down. In the summer, my best friend Ellen and I would come here and sit for hours. It was our special place. All of a sudden, I thought I heard someone shouting my name. I turned and saw Ellen walking up behind me.

  “Oh my Gosh! It’s really you, Martha!” she said. “I can’t believe that you are out here right now. I thought I would be the only person crazy enough to go for a walk in the rain.”

  I was very happy to have some company. We decided that hiking in the rain was just as fun as hiking in the sunshine. We planned on hiking in the rain again.

  What is the best title for the story?