KHTN 8-Bài 10. THANG pH

KHTN 8-Bài 10. THANG pH

8th Grade

29 Qs

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KHTN 8-Bài 10. THANG pH

KHTN 8-Bài 10. THANG pH

Assessment

Quiz

Social Studies

8th Grade

Easy

Created by

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Used 2+ times

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29 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nhóm các dung dịch có pH > 7 là:

A. HCl, HNO3.          

B. NaCl, KNO3.        

C. NaOH, Ba(OH)2

D. H2O, H2SO4.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nhóm các dung dịch có pH < 7 là:

A. HCl, NaOH.

B. H2SO4, HNO3.

C. NaOH, Ca(OH)2.

D. BaCl2, NaNO3.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Có 4 dung dịch X, Y, Z, T. Dung dịch có độ base mạnh nhất khi

A. pH = 8.     

B. pH = 12.   

C. pH = 10.

D. pH = 14.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Đất kiềm có

A. pH = 7.

B. pH >7.

C. pH <7.

D. pH =5.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nước chanh ép có

A. pH < 7.

B. pH = 7.

C. pH  > 7.

D. 7 < pH < 9.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Dung dịch được tạo thành từ sulfur dioxide với nước có

A. pH = 7.

B. pH > 7.

C. pH< 7.

D. pH = 8.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Oxide nào sau đây khi tác dụng với nước tạo ra dung dịch có pH > 7?

A. CO2.          

B. SO2.

C. CaO.

D. P2O5.

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