If universal indicator shows blue, the solution is categorized as?

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

If universal indicator shows blue, the solution is categorized as?

Explanation:
Universal indicator colors map to pH and whether a solution is acidic or alkaline. Blue shows the solution is alkaline (pH above 7). The shade tells how strong the alkali is: a dark blue or purple indicates a strong alkali, while a lighter blue indicates a weaker alkali. Since the color is blue but not a very dark shade, it points to a weak alkali. Neutral would be green, and acids would be red/orange/yellow depending on strength, so those aren’t applicable here.

Universal indicator colors map to pH and whether a solution is acidic or alkaline. Blue shows the solution is alkaline (pH above 7). The shade tells how strong the alkali is: a dark blue or purple indicates a strong alkali, while a lighter blue indicates a weaker alkali. Since the color is blue but not a very dark shade, it points to a weak alkali. Neutral would be green, and acids would be red/orange/yellow depending on strength, so those aren’t applicable here.

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