Indicators and pH scale — KCSE Chemistry
KCSE Chemistry · 55 practice questions · 4 syllabus objectives
What You'll Learn
Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.
Explain the pH scale and relate pH values to the concentration of hydrogen ions
Describe the action of natural and synthetic indicators and state their colour changes in acids and bases
Use universal indicator and pH meter to determine the acidity or alkalinity of a solution
Indicators and pH scale
Sample Questions
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Identify two indicators that can be used to determine pH and state one property of each. (4 marks)
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Identify the pH range for a weak acid and give an example of such an acid. (3 marks)
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Identify the colour changes observed for bromothymol blue in acidic and alkaline solutions. (2 marks)
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Why Practise Indicators and pH scale?
KNEC Aligned
Questions match the KCSE syllabus objectives and exam format exactly.
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