
HÓA 10-CLO - ĐỀ 2
Authored by NGUYỄN KIÊN
Chemistry
10th - 12th Grade
Used 43+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho phản ứng:
Cl2 +2NaOH →NaCl + NaClO + H2O.
Clo có vai trò là :
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong phản ứng sau :
Cl2 + H2O ↔ HCl + HClO.
Phát biểu nào sau đúng ?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong phòng thí nghiệm để điều chế clo người ta dùng MnO2 với vai trò là:
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Clo ẩm có tác dụng tẩy màu, là do :
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sợi đồng nóng đỏ cháy sáng trong bình chứa khí A. Khí A là chất nào?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đốt nóng sợi dây đồng rồi đưa vào bình khí clo thì xảy ra hiện tượng nào sau đây ?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Điều chế khí clo trong phòng thí nghiệm bằng cách cho dung dịch X tác dụng với chất oxi hóa Y ở nhiệt độ phòng thí nghiệm. X và Y là:
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