
Trắc nghiệm về Base
Authored by Hiền Thị
Chemistry
8th Grade
Used 2+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Điền vào chỗ trống: "Base là những ... trong phân tử có nguyên tử kim loại liên kết với nhóm ... Khi tan trong nước, base tạo ra ion ..."
Đơn chất, hydrogen, OH−.
Hợp chất, hydroxide, OH−.
Đơn chất, hydroxide, H+.
Hợp chất, hydrogen, H+.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Base làm chất nào từ không màu thành màu hồng?
Quỳ tím.
Phenolphthalein.
Tinh bột.
Nước.
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Base nào là kiềm?
Ba(OH)2.
Cu(OH)2.
Mg(OH)2.
Fe(OH)2.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Base tác dụng với dung dịch acid tạo thành:
Base mới và acid mới.
Muối và nước.
Base mới không tan và nước.
Acid mới và khí hydrogen.
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Tìm phát biểu đúng.
Base là hợp chất mà phân tử có chứa nguyên tử kim loại liên kết với gốc OH
Acid là hợp chất mà phân tử có chứa một hay nhiều nguyên tử H.
Base hay còn gọi là kiềm.
Chỉ có base tan mới gọi là dung dịch kiềm.
6.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Trong các chất sau: KCl, AgCl, Ca(OH)2, CuSO4, Ba(OH)2, KHCO3. Số chất thuộc hợp chất bazơ là
1.
2.
4.
3.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy các bazơ làm phenolphthalein hoá đỏ:
NaOH; Ca(OH)2; Zn(OH)2; Mg(OH)2.
NaOH; Ca(OH)2; KOH; Ba(OH)2.
LiOH; Ba(OH)2; KOH; Al(OH)3.
LiOH; Ba(OH)2; Ca(OH)2; Fe(OH)3.
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