
HÓA 12 - ĐỀ 4
Authored by Hương Phạm
Chemistry
12th Grade
Used 9+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dung dịch chất nào sau đây làm quỳ tím chuyển sang màu xanh?
Glyxin.
Lysin.
Anilin.
Saccarozo.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Công thức của sắt(II) nitrat là
Fe(NO3)3.
FeSO4.
Fe(NO3)2
FeCl2
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Kim loại đứng đầu về độ phổ biến trong lớp vỏ Trái Đất là
Al
Cu
Fe
Au
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Độ dinh dưỡng của phân lân được đánh giá theo tỉ lệ phần trăm về khối lượng của
N2
P2O5.
K2O
CO2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân tử polime nào sau đây KHÔNG chứa nitơ?
Nilon-6,6
Poli(caproamit).
Poli(metyl metacrylat).
Poliacrilonitrin.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cặp chất nào sau đây cùng dãy đồng đẳng?
C3H4 và C2H4.
CH4 và C3H8.
C2H4 và C4H10.
C3H4 và C4H8.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Kim loại có độ cứng lớn nhất là
kim cương.
Hg.
W.
Cr.
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