
Tn cuoi ki 2
Quiz
•
Chemistry
•
3rd Grade
•
Easy
Thy Vuong
Used 10+ times
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1: Trong thành phần chất hữu cơ nhất thiết phải có nguyên tố:
A. cacbon và hiđro
B. cacbon
C. ố cacbon, hiđro
C. cacbon, Nito
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2: Một hợp chất hữu cơ A có liên kết đôi. Vậy A là
A. axetilen.
B. metan.
C. etilen.
D. đimetyl etan
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3: Phân biệt metan và etilen dùng dung dịch nào sau đây ?
A. Br2
B. NaOH
C. NaCl
D. AgNO3 trong NH3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4: Chất nào khi tác dụng với nước sinh ra khí axetilen ?
A. Al4C3.
B. CaC2.
C. CaO.
D. Na2S.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 5: Khí tham gia phản ứng trùng hợp là
A. CH4.
B. C2H4.
C. C3H8.
D. C2H6.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 6: Khi đốt cháy hoàn toàn 0,25 mol metan người ta thu được một lượng khí CO2 (đktc) có thể tích là
A. 5,6 lít.
B. 11,2 lít.
C. 16,8 lít.
.
D. 8,96 lít
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 7: Dẫn 0,5 mol khí X qua bình đựng 1 mol dung dịch nước brom dư. X là:
A. C2H2
B. C2H4.
C. CH4.
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