
K12-ĐỀ LUYỆN SỐ -05
Authored by Hồng Vũ
Chemistry
9th - 12th Grade
Used 1+ times

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32 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất béo là trieste của axit béo với
metanol.
etanol.
etylen glicol.
glixerol.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CT cấu tạo của glyxin là
CH3CH2NH2.
H2NCH2COOH.
H2NCH(CH3)COOH.
HCOONH4.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây có thể làm mất màu nước brom?
Tinh bột.
Fructozơ.
Saccarozơ.
Glucozơ.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong hợp chất Cr2O3, nguyên tố crom có số oxi hóa là
+2.
+3.
+6.
+1.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sắt tây được sử dụng làm vỏ đồ hộp. Sắt tây là sắt được tráng
thiếc.
crom.
nhôm.
kēm.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi của hợp chất CH3COOCH3 là
etyl fomat.
etyl axetat.
metyl fomat.
metyl axetat.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dd chất nào sau đây hòa tan được Al(OH)3?
Na2SO4.
NaCl.
H2SO4.
NH3.
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