20 câu lần 6
Quiz
•
Chemistry
•
1st Grade
•
Medium
Thao Tran Thi Thanh
Used 2+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Kim loại nào sau đây có tính khử mạnh nhất?
Al
Ag
Fe
Cu
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Loại polime có chứa nguyên tố halogen là
tơ olon.
cao su buna.
PVC.
PE.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Kim loại nào sau đây không tác dụng với nước ở điều kiện thường?
Ba
K
Cu
Na
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Dung dịch chất nào sau đây làm quỳ tím chuyển sang màu xanh?
Alanin.
Metylamin.
phenol.
axit glutamic.
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Kim loại nào sau đây dẫn điện tốt nhất?
Au
Cu
Al
Ag
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong hợp chất NaCrO2, crom có số oxi hóa là
+2
+3
+4
+6
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Chất nào sau đây tác dụng với dung dịch HNO3 loãng dư sinh ra khí NO?
Fe(OH)3.
Fe2(SO4)3.
Fe(OH)2.
CuO.
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