WorksheetsAcid Bases & Indicators
Total questions: 10
Worksheet time: 5mins
Give an example of an indicator used to test for acids.
Litmus paper
Universal indicator
Bromothymol blue
Phenolphthalein
How does an indicator change color in the presence of an acid?
Due to a change in pH level
Through exposure to sunlight
As a result of increased pressure
Due to a change in temperature
What color does an indicator turn in the presence of a base?
green
red
blue
yellow
Explain how indicators help in distinguishing between acids and bases.
Indicators help in distinguishing between acids and bases by changing color based on the pH of the solution they are added to.
Indicators help in distinguishing between acids and bases by creating a magnetic field
Indicators help in distinguishing between acids and bases by producing a foul odor
Indicators help in distinguishing between acids and bases by emitting a distinct sound
Why is it important to use indicators when dealing with acids and bases?
To increase the pH of the solution
To determine acidity/basicity of a solution.
To confuse the experimenter
To add flavor to the solution
Describe the process of using an indicator to test for the presence of an acid.
Add indicator to the substance being tested, observe color change
Heat the substance and observe the reaction
Shake vigorously and listen for a sound
Mix with water and observe the fizzing
Can the same indicator be used to test for both acids and bases? Why or why not?
Yes
Sometimes
It depends
No
What are some common indicators used in chemistry experiments?
Litmus paper, phenolphthalein, methyl orange, bromothymol blue, universal indicator
colorimeter
pipette
pH paper
titration paper
How do indicators contribute to our understanding of the properties of acids and bases?
Indicators provide taste tests to determine if a substance is acidic or basic.
By changing color in response to the presence of acids or bases, indicators help us visually identify the properties of substances as acidic or basic.
Indicators release heat when in contact with acids or bases.
Indicators contribute by emitting sounds when exposed to acids or bases.
A child got stung by a bee. Some of the Elders suggest to add Baking Soda or Lemon Juice. Which one do you think is Appropriate ?
Lemon Juice
Water
Baking Soda
None of the Above
