KT BAZO
4th Grade
•10 Qs
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KT BAZO
Quiz
•
Chemistry
•
4th Grade
•
Practice Problem
•
Hard
Giang Thùy
Used 9+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cặp chất nào sau đây có xảy ra phản ứng?
A. CO; NaOH B . KCl và Ba(NO3)2
C.ZnO ; NaOH D. NaOH, MgCO3
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Có bao nhiêu cặp chất có thể phản ứng với nhau từng đôi một trong số các chất sau: CuO; Fe; H2SO4;Mg(NO3)2 ; Ba(OH)2
A.6 B.4 C.7 D.5
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch KOH phản ứng được với tất cả các chất trong dãy chất nào dưới đây?
A. FeCl2; HCl; ZnO; CuO
B. MgSO4; CO; Fe(NO3)3; SO3
C. Al2O3 ; FeCl3; CO2; HBr
D. Cả A, B, C sai.
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1) Đơn chất tác dụng với H2ChuySO4 loãng giải phóng khí là:
A.Cu B.S C.Zn D.Hg
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1) Chỉ ra dãy gồm toàn oxit axit:
A. CaO, SO2, SO3
B. NO, NO2, CO2
C. P2O5, CO2, SiO2
D. CuO, CO2, CO
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy các oxit đều tác dụng với HCl:
A. MgO; CO2; Nạ2O; N2O5
B. CuO; Zn; NaOH
C. ZnO; CaO; K2O
D. Zn; Cu(OH)2; Na2CO3
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
KHí CO có lẫn CO2 và SO2; có thể làm sạch CO bằng chất nào sau đây?
A. dd BaCl2 B. dd HCl
C. dd NaOH D. khí hidro
A
B
C
D
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