
KHỞI ĐỘNG
Authored by Vàng Mai
Chemistry
11th Grade
Used 11+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Điền các từ hoặc cụm từ thích hợp vào chỗ trống. Phản Ứng tỏa nhiệt là phản ứng.........(1).... năng lượng dưới dạng nhiệt. Phản ứng thu nhiệt là phản ứng....................(2) năng lượng dưới dạng nhiệt
1 -cung cấp
2-hấp thụ
1 -Giải phóng
2-hấp thụ
1 -hấp thụ
2-Giải phóng
1 -tỏa
2-phân hủy
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trùng hợp isopren tạo ra cao su isopren có cấu tạo là
(-CH2−C(CH3)−CH−CH2-)n
(-CH2−C(CH3)=CH−CH2-)n
(-CH2−C(CH3)−CH=CH2-)n
(-CH2−CH(CH3)−CH2−CH2-)n
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Phân biệt metan và etilen dùng dung dịch nào sau đây ?
dung dịch Br2
NaOH
NaCl
AgNO3 trong NH3
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ở điều kiện thường Anken ở thể khí có chứa số cacbon:
.
Từ 2 đến 6.
Từ 2 đến 5.
Từ 2 đến 4
Từ 2 đến 7.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Theo IUPAC,
CH≡C−CH(CH3)− CH3
có tên gọi là
.
pentin
but-2-in
3-metylbut-1-in
2-metylbut-1-in
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