
Ôn thi Hóa HKII
Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Đại Đặng
Used 1+ times
FREE Resource
126 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số electron lớp ngoài cùng của các nguyên tử kim loại thuộc nhóm IA là
3
2
4
1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức chung của oxit kim loại thuộc nhóm IA là
RO2
RO
R2O3
R2O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất phản ứng được với dung dịch NaOH tạo kết tủa là
FeCl3
BaCl2
K2SO4
KNO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch làm quỳ tím chuyển sang màu xanh là
NaCl
Na2SO4
NaOH
NaNO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sản phẩm tạo thành có chất kết tủa khi dung dịch Na2CO3 tác dụng với dung dịch
CaCl2
NaNO3
KOH
KCl
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi nhiệt phân hoàn toàn NaHCO3 thì sản phẩm của phản ứng nhiệt phân là
NaOH, CO2, H2
NaOH, CO2, H20
Na2CO3, CO2, H2O
NaOH, CO2, H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để bảo quản natri, người ta phải ngâm natri trong
nước
rượu etylic
dầu hỏa
phenol lỏng
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