
HÓA HỌC GIỮA HK2
Quiz
•
Other
•
12th Grade
•
Practice Problem
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Medium
Nhi Vi
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64 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các hợp chất, kim loại nhóm IA có số oxi hóa là
A. +4.
B. +1.
C. +2.
D. +3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron lớp ngoài cùng của nguyên tử kim loại kiềm là
A. ns2np1.
B. ns2np2 .
C. ns1.
D. ns2.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số electron ở lớp ngoài cùng của các nguyên tử kim loại thuộc nhóm IA là
A. 4.
B. 3.
C. 1.
D. 2.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của kim loại kiềm là:
A. +1, -1
B. 0
C. -1
D. 0, +1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số electron lớp ngoài cùng của các nguyên tử kim loại thuộc nhóm IIA là
A. 3.
B. 2.
C. 4.
D. 1.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Natri hiđrocacbonat là chất nào dưới đây
A. NaOH
B. NaHCO3
C. Na2CO3
D. KNO3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sản phẩm thu được khi hòa tan kim loại kiềm trong nước là
A. oxit axit.
B. dung dịch muối.
C. dung dịch bazơ.
D. oxit axit.
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