
Hóa thi hk2 (1,2,3)
Authored by 22 11A6
Chemistry
12th Grade
Used 2+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron lớp ngoài cùng của nguyên tử nguyên tố Al (Z= 13) là
3s²3p³
3s²3p²
3s²3p¹
3s¹3p²
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong công nghiệp, quặng boxit dùng để sản xuất kim loại nhôm. Thành phần chính của
quặng boxit là
Al2O3.2H2O
Al(OH)3.2H2O
Al(OH)3.H2O.
Al2(SO4)3.H2O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sản phẩm của phản ứng giữa kim loại nhôm với khí oxi là
AlCl3
Al2O3
Al(OH)3
AI(NO3)3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở nhiệt độ thường, kim loại Al tan hoàn toàn trong lượng dư dung dịch nào sau đây
KCl
NaCl
NaOH
NaNO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây tan hết trong dung dịch NaOH loãng, dư?
Al2O3
MgO
FeO
Fe2O3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất không có tính chất lưỡng tính là
Al2O3
NaHCO3
AlCl3
Al(OH)3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vào mùa lũ, để có nước sử dụng, dân cư ở một số vùng thường sử dụng chất X (có công
thức K2SO4.Al2(SO4)3.24H2O) để làm trong nước. Chất X được gọi là
Phèn chua
Vôi sống
Thạch cao
Muối ăn
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