Bài ôn tập cuối kì lớp 11
Quiz
•
Chemistry
•
11th Grade
•
Hard
Nguyễn Thanh Sơn
Used 75+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây thuộc loại chất điện li mạnh?
CH3COOH.
C2H5OH.
H2O.
NaCl.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây thuộc loại chất điện li yếu?
KCl.
HF.
HNO3.
NH4Cl.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào dưới đây không phân li ra ion khi hòa tan trong nước?
MgCl2.
HClO3.
Ba(OH)2.
C6H12O6 (glucozơ).
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây làm xanh quỳ tím?
HCl.
Na2SO4.
NaOH.
KCl.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là muối axit?
KNO3.
NaHSO4.
NaCl.
Na2SO4.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phòng thí nghiệm, người ta thu khí nitơ bằng phương pháp dời nước vì
N2 nhẹ hơn không khí.
N2 rất ít tan trong nước.
N2 không duy trì sự sống, sự cháy.
N2 hoá lỏng, hóa rắn ở nhiệt độ rất thấp.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong amoniac, nitơ có số oxi hóa là
+3.
-3.
+5.
-5.
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