
TCVL và TCHHKL - hiểu
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Medium
P. Hậu
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình e nào sau đây là của nguyên tử kim loại?
1s22s22p6
1s22s22p63s23p4
1s22s22p63s23p5
1s22s22p63s1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố Y có Z = 27. Vị trí của nguyên tố Y trong bảng hệ thống tuần hoàn là:
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hai kim loại đều phản ứng với dung dịch Cu(NO3)2 giải phóng kim loại Cu là?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch FeSO4 và dung dịch CuSO4 đều tác dụng được với?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để hoà tan hoàn toàn hỗn hợp gồm hai kim loại Cu và Zn, ta có thể dùng một lượng dư dung dịch
AlCl3.
AgNO3.
CuSO4.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các kim loại: Ni, Fe, Cu, Zn; số kim loại tác dụng với dung dịch Pb(NO3)2 là?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong dung dịch CuSO4, ion Cu2+ không bị khử bởi
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