⚗️ Acids, Bases and the pH Scale
This quiz explores the fundamentals of acids, bases, and the pH scale—essential concepts in chemistry for understanding chemical reactions and everyday substances. **What you'll learn:** - Identify acids and bases using the pH scale and their key properties - Understand how to measure acidity and alkalinity - Recognise neutralisation reactions and their products - Apply pH scale knowledge to classify common household substances - Explain the relationship between hydrogen ions and pH
Questions in this quiz
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- Question 1
What is the pH value of a neutral substance at room temperature?
- Question 2
Vinegar is an alkaline substance.
- Question 3
The pH scale ranges from to ___, with values below indicating acids and values above indicating bases.
- Question 4
Which of the following is an example of a strong acid?
- Question 5
When an acid and a base react together, they always produce a salt and water in a neutralisation reaction.
- Question 6
A substance with a pH of is ___ times more alkaline than a substance with a pH of , because the pH scale is logarithmic with a base of ___.
- Question 7
Which indicator would show a blue colour in an alkaline solution?
- Question 8
Sodium hydroxide (NaOH) is a weak base because it does not fully dissolve in water.
- Question 9
Arrange these substances in order from least acidic (lowest pH) to most acidic (highest pH).
- Question 10
In a neutralisation reaction between nitric acid (HNO₃) and potassium hydroxide (KOH), what is the salt product?