Test Hóa
6th - 8th Grade
•35 Qs
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Test Hóa
Quiz
•
Chemistry
•
6th - 8th Grade
•
Practice Problem
•
Easy
Thắm Lê
Used 2+ times
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxit nào là oxit axit trong số các oxit dưới đây?
Li2O
MgO
BaO
SO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất nào có công thức P2O5 có tên gọi là?
điphotpho oxit
photpho oxit
photpho pentaoxit
điphotpho pentaoxit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng nào dưới đây là phản ứng hóa hợp?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxit phi kim nào dưới dây ko phải là oxit axit
SO2
SO3
NO
N2O5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để thu khí oxi bằng phương pháp đẩy không khí cần đặt:
Ngửa bình thu
Ngang bình thu
Úp bình thu
Bình thu nghiêng một góc 45o
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong công nghiệp sản xuất khí oxi từ không khí bằng cách:
Hóa lỏng không khí, sau đó cho không khí lỏng bay hơi
Lọc không khí
Hóa lỏng không khí, sau đó chiết lấy oxi
Hóa lỏng không khí
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Axit là những chất làm cho quỳ tím chuyển sang màu nào?
Xanh
Đỏ
Tím
Ko xác định đc
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