
CROM
Authored by huyen pham
Chemistry
5th Grade
Used 3+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crom có số oxi hóa +2 trong hợp chất nào sau đây?
CrO3
CrO3
CrCl2
K2Cr2O7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crom có số oxi hóa +6 trong hợp chất nào sau đây?
Cr(OH)3
K2Cr2O7
CrCl2
Cr2O3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crom có số oxi hóa +6 trong hợp chất nào sau đây?
CrO3
Cr2O3
CrO
CrCl3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crom có số oxi hóa +3 trong hợp chất nào sau đây?
CrO3
K2Cr2O7
CrCl2
Cr(OH)3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crom có số oxi hóa +3 trong hợp chất nào sau đây?
CrO3
Na2Cr2O4
CrO
NaCrO2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức crom(III) oxit là
CrO3
Cr2O3
CrO
CrO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức crom(III) sunfat là
CrO3
CrSO4
Cr2(SO4)3
NaCrO2
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