Lesson 4.4.2.6
4.4.2.6 Strong and weak acids (HT only) Quiz: AQA Chemistry, Unit 4
20 questions
In partnership with Revision Ninja
Lesson 4.4.2.6, Strong and weak acids (HT only): 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 4: Chemical changes, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
Higher tier: Which acid is a strong acid?
- Ethanoic acid
- Nitric acid
- Citric acid
- Carbonic acid
-
Higher tier: Which acid is a weak acid?
- Sulfuric acid
- Citric acid
- Hydrochloric acid
- Nitric acid
-
What defines a strong acid in aqueous solution?
- Completely ionised
- Neutralised
- Partially ionised
- Undissolved
-
Higher tier: For a given concentration, a stronger acid has:
- A higher pH
- A pH of exactly 7
- The same pH
- A lower pH
-
Higher tier: When pH falls from 4 to 3, the hydrogen ion concentration:
- Halves
- Increases tenfold
- Stays the same
- Decreases tenfold
-
Higher tier: Solution A has pH 2 and solution B has pH 5. How much higher is the hydrogen ion concentration of A than B?
- 10 times
- 100 times
- 1000 times
- They are equal
-
How is a dilute acid best described in terms of amount?
- High amount per volume
- Low degree of ionisation
- High degree of ionisation
- Low amount per volume
-
What characterises a weak acid in solution?
- Insoluble solid
- Partially ionised
- High concentration
- Completely ionised
-
Higher tier: Which acid gives the lowest pH at the same concentration?
- Ethanoic acid
- Citric acid
- Carbonic acid
- Hydrochloric acid
-
Higher tier: Two 0.1 mol/dm3 acids are compared. Which has the higher pH?
- Hydrochloric acid
- Sulfuric acid
- Ethanoic acid
- Nitric acid
-
Higher tier: A solution at pH 1 is compared with one at pH 7. How many times greater is the hydrogen ion concentration of the pH 1 solution?
- They are equal
- 600 times
- 6 times
- 1 000 000 times
-
Higher tier: What pH does a neutral solution have?
- 14
- 1
- 0
- 7
-
Higher tier: Which of these is more acidic?
- pH 6
- pH 1
- They are equal
- Neither is acidic
-
What happens to the molecules in a weak acid solution?
- All form hydroxide ions
- All release H+ ions
- Few release H+ ions
- None dissolve in water
-
What term describes an acid with a high amount of substance per volume?
- Weak
- Dilute
- Concentrated
- Strong
-
Higher tier: Carbonic acid is an example of which type of acid?
- Alkali
- Neutral salt
- Weak acid
- Strong acid
-
Higher tier: The hydrogen ion concentration at pH 3 is how many times that at pH 4?
- 100 times
- 0.1 times
- 1 times
- 10 times
-
Which acid pair contains only strong acids?
- Ethanoic and nitric
- Hydrochloric and nitric
- Citric and carbonic
- Ethanoic and citric
-
Higher tier: A strong acid at pH 2 is diluted tenfold with water. What is the new pH?
- pH 3
- pH 20
- pH 2
- pH 1
-
Compared to a weak acid of equal concentration, a strong acid has what?
- Neutral pH
- Equal pH
- Lower pH
- Higher pH
Related quizzes
- Metal oxides Quiz · 4.4.1.1 · 20 questions
- The reactivity series Quiz · 4.4.1.2 · 20 questions
- Extraction of metals and reduction Quiz · 4.4.1.3 · 20 questions
- Oxidation and reduction in terms of electrons (HT only) Quiz · 4.4.1.4 · 20 questions
- Reactions of acids with metals Quiz · 4.4.2.1 · 20 questions
- Neutralisation of acids and salt production Quiz · 4.4.2.2 · 20 questions
- Soluble salts Quiz · 4.4.2.3 · 20 questions
- The pH scale and neutralisation Quiz · 4.4.2.4 · 20 questions
- Titrations (chemistry only) Quiz · 4.4.2.5 · 20 questions
- The process of electrolysis Quiz · 4.4.3.1 · 20 questions