
TEST 31.07.2025
Authored by Linh Nguyen
Science
11th Grade
Used 2+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Dung dịch chất nào sau đây làm xanh quỳ tím?
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Dung dịch chất nào sau đây làm quỳ tím hóa đỏ?
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Dung dịch chất nào sau đây không làm đổi màu quỳ tím?
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Một dung dịch có pH = 11,7. Nồng độ ion hydrogen (H+) của dung dịch là
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nồng độ ion OH– của dung dịch khi pH = 5 là
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
pH của dung dịch có [H+] = 4,2×10−10 M là
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
pH của dung dịch có [OH−] = 4,0×10−11 M là
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