ĐỀ ÔN KIỂM TRA GIỮA KÌ I - MÔN HÓA 11 (ĐỀ 03)
Quiz
•
Chemistry
•
11th Grade
•
Medium
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Used 7+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào dưới đây dẫn điện?
Benzene
Glucose
CH3CHO
CuSO4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng thuận nghịch nào sau đây khi thay đổi áp suất thì cân bằng không bị chuyển dịch?
H2(g) + Br2(g) ⇌ 2HBr(g)
N2(g) + 3H2(g) ⇌ 2NH3(g)
2NO2(g) ⇌ N2O4(g)
2SO2(g) + O2(g) ⇌ 2SO3(g)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phản ứng tổng hợp ammonia: N2(g) + 3H2(g) ⇌ 2NH3(g), ΔH < 0, để tăng hiệu suất tạo ammonia, cần
Tăng nhiệt độ.
Giảm nồng độ N2 và H2.
Giảm áp suất.
Giảm nồng độ NH3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố nitrogen có số oxi hóa thấp nhất là
+3
-3
+5
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Yếu tố nào dưới đây không ảnh hưởng đến chuyển dịch cân bằng?
Nồng độ
Nhiệt độ
Áp suất
Chất xúc tác
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong khí quyển trái đất, chất khí chiếm tỉ lệ nhiều nhất là
O2
N2
Cl2
H2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình điện li nào dưới đây viết sai?
NaCl ⇌ Na+ + Cl-.
CH3COOH ⇌ CH3COO- + H+.
KNO3 → K+ + NO3-.
CuSO4 → Cu2+ + SO42-.
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