Lesson 4.4.2.4
4.4.2.4 The pH scale and neutralisation Quiz: AQA Chemistry, Unit 4
20 questions
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Lesson 4.4.2.4, The pH scale and neutralisation: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 4: Chemical changes, written with Revision Ninja.
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The 20 questions
-
Which pH range describes aqueous solutions of acids?
- Greater than 7
- Exactly 7
- Less than 7
- Between 7 and 14 only
-
Which pH value describes a neutral solution?
- 9
- 7
- 5
- 12
-
Which pH value shows an alkaline solution?
- 2
- 7
- 11
- 5
-
Which ion is produced by acids in aqueous solution?
- Chloride
- Hydrogen
- Oxide
- Hydroxide
-
Which ion is present in aqueous solutions of alkalis?
- Oxide ions
- Hydrogen ions
- Hydroxide ions
- Chloride ions
-
In neutralisation, hydrogen ions react with hydroxide ions to form which substance?
- Hydroxide
- Oxygen
- Water
- Hydrogen gas
-
Which tool measures the approximate pH of an aqueous solution?
- Universal indicator
- Thermometer
- Measuring cylinder
- Burette
-
Solution A has pH 2 and solution B has pH 5. Which solution is more acidic?
- Neither is acidic
- Both equally acidic
- Solution A
- Solution B
-
A solution has pH 12. As acid is added until neutralisation, the pH moves towards which value?
- Towards 14
- Towards 0
- It stays at 12
- Towards 7
-
A strong acid is exactly neutralised by a strong alkali. What is the pH of the final solution?
- 0
- 7
- 14
- 10
-
Which of these pH values is the most alkaline?
- 8
- 3
- 6
- 13
-
What is the pH value of a neutral aqueous solution at room temperature?
- 1
- 14
- 0
- 7
-
Which values make up the pH scale?
- 0 to 14
- 0 to 100
- 1 to 10
- 0 to 7
-
During titration with universal indicator, the solution turns green. Which pH is this closest to?
- About 14
- About 1
- About 7
- About 12
-
Which ions react to reduce acidity when an alkali is added to an acid?
- Sodium and hydroxide
- Hydrogen and hydroxide
- Hydrogen and chloride
- Sodium and chloride
-
Which two species are present in equal amounts in pure water?
- Hydrogen and hydroxide ions
- Sodium and hydroxide ions
- Oxygen and hydrogen gas
- Hydrogen and chloride ions
-
Which of these pH values is closest to neutral?
- 6
- 12
- 4
- 1
-
A solution has pH 3. Which description is correct?
- Neutral
- Acidic
- Saturated
- Alkaline
-
What is the key advantage of a pH probe over universal indicator?
- Easier storage
- Higher precision
- Cheaper cost
- Faster colour change
-
What is the approximate pH when equal moles of a strong acid and strong alkali mix?
- 7
- 4
- 13
- 1
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