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Quiz
•
English
•
8th Grade
•
Hard
vananh duong
Used 1+ times
FREE Resource
22 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu 1: Acid HCOOH có :
A. Gốc COOH , ion H+
B. Gốc COO, ion H+
C. Gốc HCOO, ion H+.
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu 2 : Acetic acid có kí hiệu là gì ?
A. CH3COOH
B. HCOOH
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu 3: Dung dịch làm giấy quỳ tím chuyển đỏ là :
A.Base
B. Acid
C. Phenolphthalein
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu 4: phản ứng “Nến chảy lỏng” là :
A. Biến đổi vật lí
B . Biến đổi hoá học
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Muối
Acid
Base
Odixe
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Muối
Acid
Base
Odixe
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