
bài ktra nguyên tố 3
Authored by Kiền Anh
Science
10th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 3 pts
Nguyên tố có số oxi hoá +1
K
H
Na
O
Cl
2.
MULTIPLE SELECT QUESTION
1 min • 3 pts
Nguyên tố có số oxi hoá +2
Mg
Ca
Ba
P
C
3.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Nguyên tố có số oxi hoá +3
Fe
Al
Cu
Zn
Mg
4.
MULTIPLE SELECT QUESTION
1 min • 4 pts
Nguyên tố có số oxi hoá +2
Fe
Cu
Zn
Ba
Ag
5.
MULTIPLE SELECT QUESTION
1 min • 4 pts
Nguyên tố có số oxi hoá -1
F
Cl
Br
I
O
6.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Nguyên tố có số oxi hoá -2
O
S
N
P
7.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Nguyên tử Fe thường có những số oxi hoá nào
+1
-1
+2
+3
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