
ôn tập 12A1
Authored by Diu Nguyễn
Chemistry
9th - 12th Grade
Used 1+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại dẫn điện tốt nhất là
Au
Ag
Al
Cu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quặng nào sau đây được dùng làm nguyên liệu sản xuất nhoonm?
Manhetit
hematit
boxit
pirit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để làm trong nước người ta dùng chất nào sau đây?
muối ăn
giấm ăn
vôi trong
phèn chua
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại K được bảo quản bằng cách ngâm trong
giấm
dầu hỏa
ancol etylic
nước
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây tác dụng với dung dịch HCl tạo ra khí H2
Au
Ag
Cu
Zn
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tắc chung để điều chế kim loại là
Khử cation kim loại
khử kim loại
oxi hóa kim loại
oxi hóa cation kim loại
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào sau đây làm mềm tính cứng của nước cứng vĩnh cửu
HCl
NaHCO3
NaOH
Na2CO3
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