OCR GCSE Combined Science A · J250
Specification C3.3h · Chemistry Paper 1
Revise: The pH ScaleTypically, acidic solutions produce red, orange or yellow colours, neutral solutions green, and alkaline solutions blue or purple.
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GCSE Combined Science · key term
A solution with a pH below 7.
Used by OCR
Specification C3.3h · Chemistry Paper 1
Revise: The pH ScaleTypically, acidic solutions produce red, orange or yellow colours, neutral solutions green, and alkaline solutions blue or purple.
When comparing acidic solutions, the lower pH is more acidic. When comparing alkaline solutions, the higher pH is more alkaline.
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