
hóa 1-45

Quiz
•
Chemistry
•
12th Grade
•
Medium
06 KHOA
Used 3+ times
FREE Resource
45 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na,K,Be,Mg,Ca. số kim loại trong dãy phải ứng mạnh với nước ở điều kiện thường.
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(X) kim loại màu bạc,nhẹ,dẽo,dễ dát mỏng,kéo sợi,Pứ với dung dịch HCL và NaOH. X:
Al
Mg
Cu
Ag
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron của nguyên tử K (Z=19) là :
1s2 2s2 2p6
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2 3p6 4s1
1s2 2s2 2p6 3s2 3p1
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dung dịch nào sau đây hòa tan được Al2O3
HNO3
NaOH
NaNO3
KCl
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở nhiệt độ cao, khí H2 khử được oxit nào sau đây?
Fe2O3
MgO
Al2O3
CaO
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong 2 Oxít FeO, Fe2O3, Fe3O4 chất nào tác dụng với axit HNO3 cho ra chất khí
chỉ có FeO
chỉ có Fe2O3
chỉ có Fe3O
FeO và Fe3O4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây được sử dụng trong y học, bó bột khi xương bị gãy, đúc tượng
CaSO4.2H2O
MgSO4.7H2O
CaSO4
CaSO4.H2O
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