
Câu hóa
Quiz
•
others
•
11th Grade
•
Practice Problem
•
Easy
Yến Hải
Used 2+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nhỏ 10 giọt thuốc thử Fehling vào ống nghiệm, cho thêm 10 giọt anđehit fomic vào, sau đó đun sôi trên bếp cách thủy 2 phút hiện tượng quan sát được là
Tạo kết tủa màu xanh
Tạo dd xanh lam
Tạo kết tủa đỏ gạch
Ko htg
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Tính axit của dãy nào được xếp theo chiều giảm dần( C6H5 có vòng benzen)
C2h5oh- c6h5oh- clch2cooh- ch3cooh
Clch2cooh- ch3cooh- c6h5ôh-c2h5h
Clch2cooh- c6h5oh - ch3cooh-c2h5oh
Ch3cooh-clch2cooh-c6h5oh- c2h5oh
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Thành phần nào có trong thuốc Salonpas dạng gel
Andehit fomic
Acid oxalic
Dietyl Phtalat
Metyl salysilat
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính bazơ của dãy nào được xếp theo chiều giảm dần
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
ĐĐ có pH>7 là
NaCl
NaNO3
Na2CO3
C6H12O6
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất có khả năng kháng axit trong máu
NaCl
MgO
NaHCO3
Mg(OH) 2
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cho các chất 1.ancol etylic 2. Acid acetic 3. Phenol 4. Nc
Thứ tự các chất được sắp xếp theo tính axit tăng dần là
1432
1234
3241
2341
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