
Đề Ôn Giữa Kỳ II 12 Hóa Học
Quiz
•
Chemistry
•
12th Grade
•
Medium
A. Dusty
Used 1+ times
FREE Resource
56 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 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
5 sec • 1 pt
Công thức chung của oxit kim loại thuộc nhóm IA là
R203
RO2
RO
R2O
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Cấu hình electron của nguyên tử Na (Z =11) là
1s22s2 2p6 3s2.
1s22s2 2p6.
1s22s2 2p6 3s1
1s22s2 2p6 3s23p1
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Dung dịch làm quỳ tím chuyển sang màu xanh là
NaCl
Na2SO4
NaOH
NaNO3
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Sản phẩm tạo thành có chất kết tủa khi dung dịch Na2CO3 tác dụng với dung dịch
KCI
KOH
CaCl2
NaNO3
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Khi nhiệt phân hoàn toàn NaHCO3 thì sản phẩm của phản ứng nhiệt phân là
NaOH, CO2, H2.
Na2O, CO2, H2O.
Na2CO3, CO2, H2O.
NaOH, CO2, H2O.
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Để bảo quản natri, người ta phải ngâm natri trong
nước
rượu etylic
dầu hỏa
phenol lỏng
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