Edexcel IGCSE Chemistry · Spec 2.28-2.29
Indicators, Strong Acids and Strong Alkalis
Covers recall required indicator colours, Interpret universal-indicator pH and Distinguish strong and weak pH bands.
Chemistry revision video
Indicators, Strong Acids and Strong Alkalis
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Spec 2.28-2.29
What you need to know
- Recall required indicator colours
- Interpret universal-indicator pH
- Distinguish strong and weak pH bands
Active recall
Quick check
Answer each question before opening the answer.
What colour is phenolphthalein in alkali?
Pink
What pH is neutral?
7
Which pH values are strongly alkaline?
11-14
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