ÔN LÝ THUYẾT TN
Quiz
•
Chemistry
•
12th Grade
•
Medium
Tú Lê Như
Used 3+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Natri hiđrocacbonat hay còn có tên gọi là baking soda dùng làm bột nở, thuốc chữa bệnh đau dạ dày. Công thức của natri hiđrocacbonat là
NaOH.
NaHCO3.
NaCl.
Na2CO3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Polime nào sau đây thuộc loại polime tổng hợp
Tơ visco
Poli(vinyl clorua)
Tơ tằm.
Xenlulozơ.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây làm quỳ tím chuyển thành màu xanh?
Glyxin.
Anilin.
Phenol.
Metylamin.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây có tính dẫn điện tốt nhất?
Ag.
Al.
Fe.
Cu.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sắt (III) hiđroxit là chất rắn màu nâu đỏ. Công thức của sắt (III) hidroxit là
FeO.
Fe2O3.
Fe(OH)3.
Fe(OH)2.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CÔ RẤT HIỀN KHÔNG HỀ LA CÁC BẠN
KHI ĐI TRỄ, SAI ĐỒNG PHỤC, VẮNG KHÔNG PHÉP.
CÔ YÊU CÁC BẠN RẤT RẤT NHIỀU
ĐÚNG
SAI
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở nhiệt độ cao, khí CO khử được oxit kim loại nào sau đây?
ZnO
Na2O.
MgO.
K2O.
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