Acids and alkalis cannot be distinguished by their appearances.
F2Y UNIT 9.2 Acid-alkali indicators and pH scale

Quiz
•
Science
•
8th Grade
•
Hard
Sijan GURUNG GURUNG
Used 10+ times
FREE Resource
33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
T
F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Litmus is a mixture of pigments extracted from lichen.
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F
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Universal indicator is a mixture of several indicators.
T
F
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
The pH value is expressed as a number from 1 to 14.
T
F
Answer explanation
The pH value is expressed as a number from 0 to 14.
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
The pH value should be an integer and cannot be expressed with decimal places.
T
F
Answer explanation
The pH value does not have to be an integer and can be expressed with decimal places.
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Litmus paper can be used to indicate the degrees of acidity or alkalinity of a substance?
T
F
7.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Which of the following indicators CANNOT be used to test for alkalis?
Red litmus paper
Blue litmus paper
pH paper
Universal indicator
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