CHEM 10 - Ôn tập đầu năm
Quiz
•
Chemistry
•
1st - 5th Grade
•
Hard
Ngân Nguyễn
Used 13+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kí hiệu hóa học của nguyên tố Clo là
A. F.
B. Cl.
C. Ca.
D. Cr.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố hóa học nào sau đây là kim loại?
A. Canxi.
B. Oxi.
C. Silic.
D. Flo.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố hóa học nào sau đây là phi kim?
A. Magie.
B. Nhôm.
C. Bạc.
D. Lưu huỳnh.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất sau:
(1) Cl2.
(2)H2SO4.
(3) Mg.
(4) CuO.
(5)Ag.
Dãy các chất là đơn chất là:
A. (1),(2),(3).
B. (1), (2),(4).
C. (1),(3),(5).
D. Tất cả các chất đã cho.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất sau :
(1)HCl.
(2) O2.
(3) Fe3O4.
(4) Ca(NO3)2
(5) BaSO4.
Số chất là hợp chất trong dãy trên là
A. 1.
B. 2.
C. 3.
D. 4.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa trị của nguyên tố Hidro là
A. I.
B. II.
C. III.
D. Không xác định.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của hợp chất oxit của nguyên tố Natri là ( biết Natri hóa trị I, Oxi hóa trị II)
A. NaO.
B. Na2O.
C. NaO2.
D. Tất cả các đáp án trên đều đúng.
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