TEST KHTN 8

TEST KHTN 8

8th Grade

44 Qs

quiz-placeholder

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TEST KHTN 8

TEST KHTN 8

Assessment

Quiz

Science

8th Grade

Practice Problem

Medium

Created by

Huy Bảo

Used 10+ times

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44 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chất nào sau đây là acid?

NaNO3

Na2SO4

HNO3

NaCl

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Acid có vị chua, có trong giấm ăn với nồng độ 2 – 5%

Hydrochloric acid (HCl).

Nitric acid (HNO3).

Sulfuric acid (H2SO4).

Acetic acid (CH3COOH).

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chất nào sau đây tác dụng với sulfuric acid sinh ra khí H2?

 Ba(OH)2

Ag, Cu

K, Mg

BaO, Na2O

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dung dịch làm quỳ tím chuyển sang màu xanh là

ZnSO4.

KNO3.

NaOH.

K2O.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Base được tạo bởi Aluminium liên kết với nhóm hydroxide có công thức hóa học là

AlCl2.

Al(OH)3 .

Al2OH.

AlSO4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dung dịch có giá trị pH < 7 là

KOH

HNO3.

H2O.

Ba(OH)2.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dung dịch có giá trị pH > 7 là

H2S

HCl

H2O

Ba(OH)2.

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