
hóa chủ đề 2
Authored by Qanh Top1
Chemistry
1st Grade
Used 13+ times

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29 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Khi nguyên tử nhường hoặc nhận electron sẽ tạo thành
A. phân tử.
B. ion.
C. cation.
D. anion.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Khi nguyên tử nhường electron sẽ tạo thành
A. phân tử.
B. ion.
C. cation.
D. anion.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Khi nguyên tử nhận electron sẽ tạo thành
A. phân tử.
B. ion.
C. cation.
D. anion.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quá trình tạo thành ion Al3+ nào sau đây là đúng?
A. Al → Al 3+ + 2e.
B. Al → Al 3+ + 3e.
C. Al + 3e → Al 3+
D. Al + 2e → Al 3+ .
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quá trình tạo thành ion Cl - nào sau đây là đúng?
A. Cl → Cl - + 1e.
B. Cl → Cl - + 2e.
C. Cl + 2e → Cl - .
D. Cl + 1e → Cl - .
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Chỉ ra ion đa nguyên tử trong các ion sau:
A. Ca 2+ .
B. Na + .
3SO2
D. Cl - .
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Chỉ ra ion đơn nguyên tử trong các ion sau:
A. Ca 2+ .
B. 4NH3
3SO3
D. 3NO
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