
Ôn tập cuối kì - Hóa 9
Authored by Kim Oanh
Chemistry
9th Grade
Used 4+ times

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22 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rượu etylic có công thức hóa học là
CH2 – CH3 – OH.
CH3 – O – CH3.
CH3 – COOH.
CH3 – CH2 – OH.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Độ rượu là số
gam rượu etylic có trong 100 mL hỗn hợp rượu với nước.
mL rượu etylic có trong 100 mL hỗn hợp rượu với nước.
gam nước có trong 100 gam hỗn hợp rượu với nước.
mL nước có trong 100 mL hỗn hợp rượu với nước.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau đây tác dụng được với rượu etylic?
CH4.
O2.
NaOH.
C2H2.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong 100 mL rượu 550 có chứa
55 g rượu etylic nguyên chất.
55 mL nước.
55 mL rượu etylic nguyên chất.
55 g nước.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Để phân biệt rượu etylic và axit axetic ta dùng
quỳ tím.
H2O.
dung dịch phenolphtalein.
Na.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Giấm ăn là dung dịch axit axetic có nồng độ
trên 5%.
dưới 2%.
từ 1% - 3%.
từ 2% - 5%.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kim loại nào sau đây tác dụng với axit axetic?
Na.
Cu.
Ag.
Au.
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