ÔN TẬP HÓA 9 - LỚP 10 (2)
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Diệu Nguyễn
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4: Thành phần chính của đá vôi là?
A. CaCO3
B. BaCO3
C. Na2CO3
D. K2CO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm các nguyên tố phi kim là
A. C, S, O, Fe.
B. Cl, C, P, S.
C. P, S, Si, Ca.
D. K, N, P, Si.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Clo là chất khí có màu
nâu đỏ.
vàng lục.
lục nhạt.
trắng xanh.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Clo tác dụng với natri hiđroxit
tạo thành muối natri clorua và nước.
tạo thành nước javen.
tạo thành hỗn hợp các axit.
tạo thành muối natri hipoclorit và nước.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Axit axetic có thể làm quỳ tím chuyển sang màu:
vàng
không chuyển màu
đỏ
xanh
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giấm ăn là tên thông thường của:
Dung dịch axit axetic 2 – 5%
Dung dịch rượu etylic 2 – 5%
Dung dịch rượu etylic 45o
Dung dịch benzen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tinh bột có nhiều trong:
mía, thốt nốt, củ cải, …
các loại hạt, củ, quả như: lúa, ngô, sắn.
dưa hấu, cam, nho
sợi bông, tre, gỗ, nứa, …
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