
Hoá Knowledge

Quiz
•
Others
•
12th Grade
•
Hard
Xuân Trang Phạm Lê
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron của ngtu
1s2 2s2 2p6
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây có tính dẫn điện tốt nhất trong tất cả các kim loại
Bạc
Đồng
Nhôm
Vàng
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất sắt (2) sunfat có công thức
Fe(OH)3
Fe2(SO4)3
Fe2O3
FeSO4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để bảo quản natri , người ta phải ngâm natri ttrong
dầu hoả
nước
phenol lỏng
rượu etylic
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất nào sau đây của sắt vừa có tính oxh , vừa có tính khử
FeO
Fe2O3
Fe(OH)3
Fe(NO3)3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để bảo vệ vỏ tài biển làm bằng thép ngta thường gắn vào vỏ tàu những tấm kloai
Pb
Sn
Cu
Zn
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kloai Al Không tam trog dung dịch nào âu đây ?
Dung dịch H2SO4 loãng , nguội
Dung dịch NaOH
Dung dịch HCL
Dung dịch HNO3, đặc , nguội
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