Ú òaaa
Quiz
•
Chemistry
•
6th - 8th Grade
•
Hard
Minh Minh
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy chất nào sau đây chỉ gồm hirdrocacbon ( Sgk/107)
a) C3H3, C2H6, CH4 , C2H4, C4H10
b) C3H4, C2H6, CH4, C2H4, CH3Cl
c) C2H2, C6H12O6,
C6H5Br2, C2H5O2N
d) C6H6, C12H22O11,, NA2CO3, C2H5CL
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
chất không làm mất màu dd Brom là
C2H6
C2H2
C2H4
C3H4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
khi đốt hoàn toàn 1 hiddro cacbon A ngta thu được số mol CO2 và số mol H2O bằng nhau. Vậy A là
CH4
C2H2
C2H6
C3H6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
hợp chất dễ tham gia phản ứng thế, hợp chất đó là
Metan
Etylen
axetylen
cả 3 hợp chất
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hãy chỉ ra dãy chất nào dưới đây có thể làm mất màu dd Brom( do pứ cộng)
CH3-CH3 , CH2 = CH2, CH3-CH2-OH
CH2 = CH2 , CH ☰ CH , CH2 =CH- CH3
CH3-OH , CH2 = CH2 , CH3-CH2-CH3
CH2= CH2 , CH3-CH2-OH, CH☰CH
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
trong các CTCT sau thì những CTCT nào viết sai
CH3-CH2-CH2-CH3
CH3-CH2-CH2-CH3
CH3-CH2-CH3
CH4-CH2-CH3
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Đốt cháy hoàn toàn 4,6g hợp chất hữu cơ A thu được 8,8g CO2 và 5,4g H2O
a) Xác định công thức phân tử của A. Biết tỉ khối hơi của A đối vs oxi là 1,4375
C2H6O
C2H4
C2H2
C2H8O
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