
ĐỀ 4 HÓA
Authored by Duc Tran
Chemistry
12th Grade
Used 1+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại phản ứng với dung dịch kiềm, giải phóng khí H2 là
Al.
Ag.
Cu.
Fe.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Xác định chất X thỏa mãn sơ đồ sau: Al2O3 + X (dd) → NaAlO2 + H2O
NaOH.
Na2CO3.
NaCl.
NaHSO4.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Xác định chất X thỏa mãn sơ đồ sau: hidroxit X o ⎯⎯→t oxit Y + H2O
NaOH.
Ba(OH)2.
KOH.
Al(OH)3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất M2SO4.Al2(SO4)3.24H2O được gọi là phèn nhôm nếu M là kim loại nào?
Ca.
Li.
K.
Ag.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxit nào lưỡng tính?
Al2O3.
Fe2O3.
CaO.
CuO.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Xác định chất X thỏa mãn sơ đồ sau: Al(OH)3 + X (dd) → Al(NO3)3 + H2O
HNO3.
K2CO3.
KNO3.
KHSO4.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho phản ứng: aAl + bHNO3 → cAl(NO3)3 + dNO + eH2O. Hệ số a, b, c, d, e là các số nguyên, tối giản. Tổng (a + b) bằng
5.
4.
7.
6.
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