
KT 15 phút hóa 12 lần 1
Quiz
•
Chemistry
•
12th Grade
•
Hard
Thị Trà Vinh Trần
Used 7+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Amylose được tạo thành từ các gốc
α-glucose
β-fructose
β-glucose
α-fructose
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hợp chất X có công thức cấu tạo: CH3CH2COOCH3. Tên gọi của X là:
ethyl acetate.
propyl acetate.
methyl acetate.
methyl propionate.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Xà phòng hóa hoàn toàn 37,0 gam hỗn hợp 2 ester là HCOOC2H5 và CH3COOCH3 bằng dung dịch NaOH, đun nóng. Khối lượng NaOH cần dùng là
20,0g
16,0g
12,0g
8,0g
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quả chuối xanh có chứa chất X làm iodine chuyển thành màu xanh tím. Chất X là:
Xenlulose.
Fructose.
Tinh bột.
Glucose
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho dãy các chất: tinh bột, xenlulose, glucose, fructose, saccharose. Số chất trong dãy thuộc loại disaccharide là:
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Khi thuỷ phân ester E trong môi trường base (dd NaOH) người ta thu được sodium acetate và ethanol. Vậy E có công thức là:
CH3COOC2H5
CH3COOCH3
C2H5COOCH3
HCOOCH3
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cho các carbohidrate: saccharose, fructose, tinh bột, xenlulose. Số carbohidrate khi thuỷ phân trong môi trường acid tạo ra glucose là:
1
2
3
4
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