Câu hỏi về dung dịch và pH
Authored by Mai Thanh
Chemistry
11th Grade
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47 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Cho các dung dịch: HCl, Na2SO4, AlCl3, Fe(NO3)3, KOH, Na3PO4, HNO3. Số dung dịch làm quỳ tím chuyển sang màu đỏ là
4
3
2
1
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Cho các dung dịch sau: HCl, NH4NO3, K2SO3, NH3, AlCl3, HF, Fe(NO3)3. Số dung dịch có môi trường acid là:
5
3
2
1
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Dung dịch chất nào sau đây làm xanh quỳ tím?
HCl
Na2SO4
NaOH
KCl
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Cho phenolphtalein vào dung dịch nào sau đây sẽ hóa hồng
dung dịch NaCl
dung dịch BaCl2
dung dịch NaOH
dung dịch HCl
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Dung dịch chất nào sau đây làm đỏ quỳ tím?
HNO3
K2SO4
NaOH
NaCl
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Cho phenolphtalein vào dung dịch nào sau đây sẽ không đổi màu?
dung dịch HCl
dung dịch NaOH
dung dịch Ba(OH)2
dung dịch KOH
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Nhúng giấy quỳ vào dung dịch có pH=4 giấy quỳ chuyển thành màu:
Đỏ
Xanh
Không đổi màu
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