
CHƯƠNG I: CÁC LOẠI HỢP CHẤT VÔ CƠ
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
tran lananh
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42 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Thành phần chính của vôi sống có công thức hoá học là:
Ca(OH)2
CaCO3
CaO
CaSO4
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Chất làm giấy quỳ tím ẩm hoá đỏ là:
CaO
SO2
Na2O
CO
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Dãy chất đều là oxit:
NaOH ; Ca(OH)2 ; Mg(OH)2 ; Fe(OH)2
NaCl ; CaCl2 ; MgCl2 ; FeCl2
Na2O ; CaO ; MgO ; FeO
Na ; Ca ; Mg ; Fe
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Dãy chất đều là oxit axit:
CO2 ; SO3 ; P2O5 ; N2O5.
CO ; SO3 ; P2O5 ; NO.
CaO ; K2O ; Na2O ; BaO.
CO ; CaO ; MgO ; NO.
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Một hợp chất oxit của sắt có thành phần về khối lượng nguyên tố sắt so với oxi là 7: 3. Vậy hợp chất đó có công thức hoá học là:
FeO
Fe3O4
Fe2O3
Fe(OH)2
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Dãy chất đều là axit:
K2O ; Na2O ; CaO ; BaO
HCl ; H2SO4 ; H2S ; HNO3
KOH ; NaOH ; Ca(OH)2 ; Ba(OH)2
KHCO3 ; NaHCO3 ; Ca(HCO3)2 ; Ba(HCO3)2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để xác định trong thành phần của axit clohiđric có nguyên tố hiđro, người ta tiến hành thí nghiệm cho axit clohiđric tác dụng với
các kim loại như Fe, Zn, Al).
các phi kim như S, P , C.
các kim loại như Cu, Ag, Au.
các phi kim như O2 ; N2 ; Cl2.
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