
hóa 10 câu tiếp theo
Authored by Anh Tiến
Chemistry

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ph>7
axit glutamic
etylamin
dimetylamin
lysin
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 51. Thuỷ phân pentapeptit X thu được các đipeptit là Ala-Gly; Glu-Gly và tripeptit là Gly-Ala Glu. Vậy cấu trúc của peptit X là:
ala gly ala glu gly
ala ala gly glu gly
ala ala glu gly gly
glu gly ala gly ala
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 52.
Thuốc thử nào sau đây có thể dùng để phân biệt được các dung dịch: glucozo, glixerol,
etanol và lòng trắng trứng?
dd hno3
dd naoh
cu(oh)2
dd agno3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 53.
Hợp chất nào sau đây thuộc loại đipeptit?
A. H2N-CH2CH2-CONH-CH2CH2COOH
C. H2N-CH2CONH-CH₂CONH-CH2COOH
B. H2N-CH2CH2-CONH-CH2COOH
(D) H2N-CH2-CONH-CH(CH3)-COOH
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
metylamin. anilin. natri axetat. alanin. glyxin. lysin. số chất làm xanh quỳ tím là
2
3
4
5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 55.
Cho dãy các chất: C6H5OH (phenol), C6H5NH2 (anilin), H2NCH2COOH, CH3CH2COOH, CH3CH2CH2NH2. Số chất trong dãy tác dụng được với dung dịch HCl là
2
3
4
5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 56.
Để phân biệt xà phòng, hồ tinh bột, lòng trắng trứng ta sẽ dùng thuốc thử nào sau đây?
i2
cu(oh)2
i2 và cu(oh)2
agno3/nh3
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