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43 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Айырылу реакциясы:
а)4HNO3 =4N02 + 2H20 + О2
b)Fe + CuSO4 =FeSO4 + Cu
c)H2 + CuO = H2O + Cu
d)CaCO + CO2 + H2O = Ca(HCO3)2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Орынбасу реакциясы:
a)2Cu + О2 → 2CuO
b)4Al+ 3Oг → 2Al2O3
C) 2H2O->2H2+O2
d) Zn + CuCl = ZnCl2 + Cu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Айырылу реакциясы:
A)2KClO3 → 2KCl+3O2
B)CuO+2HCl → CuCl2 +H2O
C)2H2 +O2 → 2H2O
D)Fe+CuCl → FeCl2 +Cu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. Орынбасу реакциясы:
A)2KClO3 → 2KCl+3O2
B)CuO+2HCl → CuCl2 +H2O
C)2H2 +O2 → 2H2O
D)Fe+CuCl → FeCl2 +Cu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. Алмасу реакциясы:
A)2KClO3 → 2KCl+3O2
B)CuO+2HCl → CuCl2 +H2O
C)2H2 +O2 → 2H2O
D)Fe+CuCl → FeCl2 +Cu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8. Қосылу реакциясы:
A) NH4Cl → NH3 +HCl
B) 2H2S+3O2 → 2H2O+2SO2
C) Сu(OH)2 → CuO+H2O
D) Fe+S → FeS
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
9. Айырылу реакциясына жатпайды:
A) NH4Cl → NH3 +HCl
B) 2KClO3 → 2KCl+3O2
C) Сu(OH)2 → CuO+H2O
D) Fe+CuCl2 → FeCl2 +Cu
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