Ôn HKII hóa 12 TN - sô 7
Quiz
•
Chemistry
•
KG
•
Practice Problem
•
Medium
Hạnh Nguyễn
Used 4+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở điều kiện thường, crom tác dụng với phi kim nào sau đây?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phát biểu nào sau đây sai?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crom (VI) oxi (Cr2O3) có màu gì
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất của crom có màu da cam là
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giữa các ion CrO2-4và ion Cr O2 72-có sự chuyển hoá lẫn nhau theo cân bằng sau: Cr2O72–( da cam) + H2O ⇄ 2CrO42–(vàng) + 2H+ Nếu thêm OH- vào thì sẽ có hiện tượng:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crom tác dụng với lưu huỳnh (đun nóng), thu được sản phẩm là
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hai chất nào sau đây đều là hiđroxit lưỡng tính?
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