
KIM LOẠI KIỀM
Quiz
•
Chemistry
•
12th Grade
•
Easy
Nguyễn Tuyền
Used 1+ times
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92 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
số electron lớp ngoài cùng của các nguyên tử kim loại thuộc nhóm IA là
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
công thức chung của oxit kim loại thuộc nhóm IA là
R2O3
RO
R20
RO2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
chất phản ứng được với dung dịch NaOH tạo kết tủa là
KNO3
BaCl2
FeCl3
K2SO4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
dung dịch làm quỳ tím chuyển sang màu xanh là
NaSO4
NaNO3
NaCl
NaOH
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 hết NaHCO3 thì sản phẩm của phản ứng nhiệt phân là
NaOH, CO2, H20
NaOH, CO2, H2
Na2CO3, CO2, H20
Na20,CO2,H20
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
để bảo quản natri, người ta phải ngâm natri trong
rượu etylic
dầu hỏa
nước
phenol lỏng
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