pH1 - Strong Acid, pH5 - Weak Acid, pH7 - Neutral, pH8 - Weak Alkaline, pH14 - Strong Alkaline, Red - Colour of pH 1 in Universal Indicator, Violet - Colour of pH13 in Universal Indicator, Green - Colour of pH 7 in Universal Indicator, Orange - Colour of pH 5 in Universal Indicator, Light blue - Colour of pH 8 in Universal Indicator,

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