
hóa bài ktra
Authored by Hường Trần
Chemistry
9th - 12th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số nguyên tử hiđro có trong phân tử glyxin là
4
5
7
6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho biết chất nào sau đây thuộc hợp chất monosaccarit?
tinh bột
saccarozơ.
xenlulozơ.
glucozơ.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số đồng phân amin có công thức phân tử C3H9N là
2
3
4
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào sau đây dùng để ngâm xác động vật
CH3COOH.
. HCHO.
CH3CHO.
CH3OH
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Axit cacboxylic trong giấm ăn là
HOOC-COOH
HCOOH.
CH3-COOH.
CH3-CH(OH)-COOH.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy gồm các chất đều làm giấy quỳ tím ẩm chuyển sang màu xanh là
metylamin, amoniac, natri axetat.
. anilin, metylamin, amoniac.
amoni clorua, metylamin, natri hiđroxit
anilin, amoniac, natri hiđroxit.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ankin là những hiđrocacbon không no, mạch hở, có công thức chung là
CnH2n – 2 (n ≥2).
CnH2n+2 (n ≥1).
CnH2n – 6 (n ≥6).
CnH2n (n ≥2).
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