
HÓA HK 2 LỚP 12
Quiz
•
Chemistry
•
12th Grade
•
Medium
Hào Phạm
Used 12+ times
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52 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Câu 1: Để bảo quản natri, người ta phải ngâm natri trong
A. dầu hỏa.
B. nước.
C. phenol lỏng.
D. rượu etylic
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Câu 2: Cấu hình electron của nguyên tử Na (Z =11) là
A. 1s22s2 2p6.
B. 1s22s2 2p6 3s1.
C. 1s22s2 2p6 3s2.
D. 1s22s2 2p6 3s23p1.
3.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Câu 3: Kim loại nào sau đây có tính dẫn điện tốt nhất trong tất cả các kim loại
A. Bạc.
B. Đồng.
C. Nhôm
D. Vàng.
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Câu 4: Hợp chất sắt (II) sunfat có công thức là
A. Fe(OH)3.
B. Fe2(SO4)3.
C. Fe2O3.
D. FeSO4.
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Câu 5: Hợp chất nào sau đây của sắt vừa có tính oxi hóa, vừa có tính khử
A. FeO.
B. Fe2O3.
C. Fe(OH)3.
D. Fe(NO3)3.
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Câu 6: Để bảo vệ vỏ tàu biển làm bằng thép người ta thường gắn vào vỏ tàu (phần ngâm dưới nước) những tấm kim loại
A. Pb.
B. Sn.
C. Cu.
D. Zn.
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Câu 7: Kim loại Al không tan trong dung dịch nào sau đây?
A. Dung dịch H2SO4 loãng, nguội
B. Dung dịch NaOH.
C. Dung dịch HCl.
D. Dung dịch HNO3 đặc, nguội.
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