
lop 11 bai 2(tt)
Authored by Tham Tongthi
Chemistry, English
11th Grade
Used 2+ times

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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Các dung dịch acid, base, muối dẫn điện được là do trong dung dịch của chúng có các
ion trái dấu.
anion (ion âm).
cation (ion dương).
chất.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây thuộc loại chất điện li mạnh?
CH3COOH.
C2H5OH.
H2O.
NaCl.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đối với dung dịch axit mạnh HNO3 0,10M, nếu bỏ qua sự điện li của nước thì đánh giá nào về nồng độ mol ion sau đây là đúng?
[H+] = 0,10M.
[H+] < [NO3-].
[H+] > [NO3-].
[H+] < 0,10M.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pH=4. Vậy nồng độ H+ =?
10^-5
10^-4
10^-3
10^-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phenolphtalein trong môi trường base có màu?
không màu
tím
Hồng
xanh
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dung dịch có [H + ] = 10 -9 M. Dung dịch này có môi trường
axit
kiềm
trung tính
undefined
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Giá trị pH của dung dịch HCl 0,001M là
1
11
3
4
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