
Kiểm tra kiến thức về acid
Authored by Trâm Anh
Chemistry
9th Grade
Used 2+ times

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59 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acid là những hợp chất trong phân tử có
nguyên tử hydrogen liên kết với gốc acid, khi tan trong nước acid tạo ra ion OH-.
nguyên tử kim loại liên kết với nhóm hydroxide, khi tan trong nước acid tạo ra ion H+.
nguyên tử kim loại liên kết với nhóm hydroxide, khi tan trong nước acid tạo ra ion OH-.
nguyên tử hydrogen liên kết với gốc acid, khi tan trong nước acid tạo ra ion H+.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là acid?
NaOH.
CaO.
KCl.
H2SO4.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây không phải là acid?
NaCl.
HNO3.
HCl.
H2SO4.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào chỉ gồm các acid?
HCl; NaOH.
CaO; H2SO4.
H3PO4; HNO3.
SO2; KOH.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để xác nhận một dung dịch là dung dịch acid ta có thể
quan sát màu của dung dịch.
ngửi mùi của dung dịch.
nhỏ dung dịch lên giấy quỳ tím.
quan sát sự bay hơi của dung dịch.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây là quỳ tím hóa đỏ?
Ca(OH)2.
HCl.
NaOH.
Na2SO4.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi cho mẩu quỳ tím vào dung dịch carbonic acid thì quỳ tím
không đổi màu.
chuyển vàng.
chuyển xanh.
chuyển đỏ.
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