Phần trăm khối lượng của nguyên tố nito trong alanin là

bai on hoa hoc

Quiz
•
Chemistry
•
12th Grade
•
Medium
minh nguyễn
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44 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
15,05%
15,73%
17,98%
18,67%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở điều kiện thường , chất nào sau đây dễ tan trong nước
Tinh bột
xenlulozo
Tristearin
glucozo
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào dưới đây không phản ứng với NaOH trong dung dịch
Metyl fomat
GLyxin
Metylamin
Gly-Ala
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào sau đây làm quỳ tím đổi thành màu xanh
Dung dịch glyxin
dung dịch alanin
dung dịch valin
dung dịch lysin
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của glyxin
CH3NH2
H2NCH2COOH
C2NCH(CH3)COOH
C2H5NH2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amino axit có phân tử khối nhỏ nhất là
Lysin
Glyxin
Alanin
Valin
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thuốc thử dùng để phân biệt Gly-Ala-Gly với Gly-Ala là :
Dung dịch HCL
Dung dịch Nacl
Dung dịch Cu(OH)2 trong môi trường kiềm
Dung dịch NaOH
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