
Hóa học
Authored by An Nguyễn
Chemistry
8th Grade
Used 4+ times

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53 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong số những chất có công thức hoá học dưới đây, chất nào làm cho quì tím đổi màu thành đỏ?
HNO3
NaOH
Ca(OH)2
NaCl
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy chất chỉ toàn bao gồm acid là
HCl; NaOH
CaO; H2SO4
H3PO4; HNO3
SO2; KOH
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Acid là những chất làm cho quỳ tím chuyển sang màu nào trong số các màu sau đây?
Xanh
Đỏ
Tím
Vàng
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy dung dịch chất lỏng nào sau đây làm đổi màu quỳ tím thành đỏ?
HNO3, H2O, H3PO4.
CH3COOH, HCl, HNO3.
HBr, H2SO4, H2O.
HCl, NaCl, KCl.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy base không tan:
Cu(OH)2; Zn(OH)2; Mg(OH)2
Fe(OH)3; Al(OH)3; KOH
Ba(OH)2; H2SO4; Fe2O3
LiOH, KOH; Ca(OH)2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho các chất sau: H2SO4, HCl, NaCl, CuSO4, NaOH, Mg(OH)2, HNO3. Số chất thuộc loại acid là
1
2
3
4
Answer explanation
đọc kĩ đề bài nha bro
đúng r thì tốt^^
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kim loại nào sau đây tác dụng được với hydrochloric acid?
Cu
Ag
Au
Fe
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