You're viewing free preview questions — 4 questions previewing here — subscribe to unlock 72 more, plus the Full Question Bank, Mock Papers & Worksheets.Upgrade
Acids Bases and Indicators — Free MYP1 Sciences Practice Questions
1QuestionCommon Acids and Bases in Everyday LifeConcept Practice
2 marks~3 minCriterion A
Look at the list of household items below.
- Lemon juice
- White vinegar
- Liquid hand soap
- Lemon juice
- White vinegar
- Liquid hand soap
a
Identify the two acids from the list. [1]
b
Describe one reason why lemon juice and white vinegar are both acids. [1]
Solutions
2QuestionSafety and Handling of Acids and Bases in the LabAssessment Practice
4 marks~6 minCriterion C
The table below shows the colour of red cabbage indicator in five household liquids.
| Liquid | Lemon juice | Vinegar | Water | Baking soda solution | Soap |
|---|---|---|---|---|---|
| pH | 2 | 3 | 7 | 9 | 10 |
| Indicator colour | Red | Pink | Purple | Blue | Green |
a
Identify the colour of the red cabbage indicator in an acid and in a base. [1]
b
Describe how the colour of the red cabbage indicator changes as pH increases from 2 to 10. [1]
c
Milk has a pH of 6 and bleach has a pH of 12. Describe how the indicator colour in milk and in bleach would differ, using the data in the table to support your answer. [2]
Solutions
3QuestionSafety and Handling of Acids and Bases in the LabConcept Practice
4 marks~6 minCriterion D
A student mixes vinegar and baking soda in a beaker. The mixture fizzes and bubbles. The student is wearing safety goggles, but they keep fogging up, making it hard to see.
a
Identify ONE hazard to the eyes during this experiment. [1]
b
Describe how safety goggles protect the student from this hazard. [1]
c
The goggles fog up and reduce visibility. Describe ONE reason why the student should keep the goggles on despite this discomfort. [2]
Solutions
4QuestionDefinition and Properties of Acids and BasesConcept Practice
3 marks~5 minCriterion B
Four household substances were tested for taste and feel.
| Lemon juice | sour taste | not slippery |
|---|---|---|
| Soap | bitter taste | slippery |
| Vinegar | sour taste | not slippery |
| Baking soda solution | bitter taste | slippery |
a
Identify one substance from the list that is an acid. [1]
b
Describe the pattern in taste and feel that shows a substance is a base. [1]
c
Describe how the taste and feel of acids and bases are different from each other. [1]
Solutions
That's every free question here — 4 of 76.
+72 more questions, plus Mock Papers & Worksheets, are waiting in Premium.