
Bài 8: Acid
Authored by Văn 1991
Chemistry
8th Grade
Used 1+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong số những chất có công thức hoá học dưới đây, chất nào có khả năng làm cho quì tím đổi màu đỏ?
HNO3
NaOH
Ca(OH)2
NaCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong số các màu sau đây, acid làm cho quỳ tím chuyển sang màu nào?
Xanh
Đỏ
Tím
Vàng
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hòa tan hết 16,8 gam kim loại A hóa trị II trong dung dịch hydrochloric acid HCl, sau phản ứng thu được 7,437 lít khí H2 ở đktc. Kim loại A là
Fe
Mg
Cu
Zn
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho 5,6 g sắt tác dụng với hydrochloric acid dư, sau phản ứng thể tích khí H2 thu được (ở đkc):
1,24 lít
2,479 lít
12,4 lít
24,79 lít
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất sau: H2SO4, HCl, NaCl, CuSO4, NaOH, Mg(OH)2. Số chất thuộc loại axit là bao nhiêu?
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Điền vào chỗ trống: "Acid là những ... trong phân tử có nguyên tử ... liên kết với gốc acid. Khi tan trong nước, acid tạo ra ion ..."
Đơn chất, hydrogen, OH−
Hợp chất, hydroxide, H+
Đơn chất, hydroxide, OH−
Hợp chất, hydrogen, H+
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sulfuric acid đặc nóng tác dụng với đồng kim loại sinh ra khí nào?
CO2
SO2
SO3
H2S
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