Thuốc Thử đặc Trưng để Nhận Biết Iot (I 2 ) - Cungthi.online

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• Thuốc thử đặc trưng để nhận biết iot (I2)

Câu 1: Thuốc thử đặc trưng để nhận biết iot (I2) A. Hồ tinh bột B. Qùy tím C. khí oxi D. Nước brom

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 Iot - CHUYÊN ĐỀ 5: NHÓM HALOGEN - Hóa học 10 - Đề số 1

• 15 phút
• 9 câu hỏi

Làm bài kiểm tra

Một số câu hỏi từ cùng một bài kiểm tra

• Thuốc thử đặc trưng để nhận biết iot (I2)
• Phản ứng nào sau đây không xảy ra?
•  Dãy các đơn chất halogen nào sau đây được xếp theo thứ tự tính oxi hóa tăng dần?
• Axit mạnh nhất là
• Muối iot là muối ăn có chứa thêm lượng nhỏ iot ở dạng
• Người ta thường dùng iot để làm chất thử nhận biết
• Để nhận biết sự có mặt của Iot, người ta dùng hóa chất nào sau đây?
• Khi nung nóng, iot rắn biến thành hơi không qua trạng thái lỏng. Hiện tượng này được gọi là
• Cho các phát biểu sau: (a) Muối iot dùng để phòng bệnh bướu cổ do thiếu iot, (b) Bạc bromua là chất nhạy cảm với ánh sáng, được dùng để tráng phim, (c) Sản xuất flo, trong công nghiệp người ta điện phân hỗn hợp lỏng KF và HF với điện cực trơ, (d) Iot có tính oxi hóa và nó phản ứng mạnh với nước ở nhiệt độ phòng, (e)Khi trộn dung dịch AgNO3 với dung dịch NaI, sau phản ứng thu được kết tủa trắng. Số phát biểu sai là

Một số câu hỏi khác bạn có thể quan tâm

• Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions.

  He finds physics far more difficult than other science subjects.

• Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.

   The plane will leave on time. The weather may be nice or not.

• Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.

  He said that he would take responsibility for his company's damage to the area. But then he denied that.

• Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the question.

  The day after Thanksgiving is the start of the holiday shopping season. Thanksgiving is always on a Thursday, so the day after is a Friday. This day has come to be known as Black Friday. It has been the busiest shopping day of the year since 2005.

  Most stores offer great deals on Black Friday. They open their doors in the wee hours of the

  morning. They try to attract shoppers with big discounts. Some items like TVs are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.

  Black Friday is a great time to get good deals. The problem is that there are not enough low-priced items to go around. Each store may only have a few. These items are in high demand. People stand in long lines to get such great deals. They may line up hours before a store opens. They may be hoping to get a low price on a TV or laptop, but not everyone who wants one will get one. Some people leave disappointed. The situation can be tense. Some Black Friday events have been Violent. Large, eager crowds have trampled workers. Fights have broken out or people have been cutting in line. People have shot one another over parking spots. But most Black Friday events are safe and fun. Still, if you plan on going, expect large crowds and a bit of shoving.

  According to the text, why do stores set prices so low on so they lose money?

• Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the question.

  The day after Thanksgiving is the start of the holiday shopping season. Thanksgiving is always on a Thursday, so the day after is a Friday. This day has come to be known as Black Friday. It has been the busiest shopping day of the year since 2005.

  Most stores offer great deals on Black Friday. They open their doors in the wee hours of the

  morning. They try to attract shoppers with big discounts. Some items like TVs are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.

  Black Friday is a great time to get good deals. The problem is that there are not enough low-priced items to go around. Each store may only have a few. These items are in high demand. People stand in long lines to get such great deals. They may line up hours before a store opens. They may be hoping to get a low price on a TV or laptop, but not everyone who wants one will get one. Some people leave disappointed. The situation can be tense. Some Black Friday events have been Violent. Large, eager crowds have trampled workers. Fights have broken out or people have been cutting in line. People have shot one another over parking spots. But most Black Friday events are safe and fun. Still, if you plan on going, expect large crowds and a bit of shoving.

  Which is NOT true about Black Friday?

• Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the question.

  The day after Thanksgiving is the start of the holiday shopping season. Thanksgiving is always on a Thursday, so the day after is a Friday. This day has come to be known as Black Friday. It has been the busiest shopping day of the year since 2005.

  Most stores offer great deals on Black Friday. They open their doors in the wee hours of the

  morning. They try to attract shoppers with big discounts. Some items like TVs are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.

  Black Friday is a great time to get good deals. The problem is that there are not enough low-priced items to go around. Each store may only have a few. These items are in high demand. People stand in long lines to get such great deals. They may line up hours before a store opens. They may be hoping to get a low price on a TV or laptop, but not everyone who wants one will get one. Some people leave disappointed. The situation can be tense. Some Black Friday events have been Violent. Large, eager crowds have trampled workers. Fights have broken out or people have been cutting in line. People have shot one another over parking spots. But most Black Friday events are safe and fun. Still, if you plan on going, expect large crowds and a bit of shoving.

  Which best explains the main idea of the third paragraph?