Kiểm tra trực tuyến lần 2 K11
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Đặng Thúy
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây tham gia phản ứng tráng bạc?
Glyxerol.
Phenol.
Etanal.
Etanol.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Anđehit no, đơn chức, mạch hở có công thức chung là
CnH2n-1CHO .
CnH2n+1CHO .
CnH2n+1OH .
CnH2n+1COOH .
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Andehit fomic hay còn gọi là fomandehit là chất khí, tan nhiều trong nước, khi hòa tan andehit fomic vào nước ta được dung dịch có tên thường gọi là
fomon.
cồn.
giấm ăn.
phenol.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên thay thế của là
andehit axetic.
anđehit fomic.
etanol.
etanal.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhóm chức hóa học của axit cacboxylic là
– COOH.
– O -.
– CHO.
– OH.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Axit cacboxylic nào sau đây có
trong nọc của con kiến?
Axit bitiric.
Axit propionic.
Axit fomic.
Axit axetic.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong
thành phần của giấm ăn có chứa từ 3% đến 5% axit axetic. Công thức cấu tạo thu
gọn của axit axetic là
.
.
.
.
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