a student was given three unknown colorless samples A, B,C to test pH . He observed that the colour of pH paper tured to yellow , red , violet with samples A,B,C respectively. what inference can you draw from this observation? arrange these samples in decreasing order of their pH value.
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A) Acid
2) Base
3) neutral solution
Explanation:
Since, on mixing a solution with turmeric, if it is a base, it will turn red. And if it is an acid, it will remain yellow. While in a neutral substance, the colour of the turmeric will be violet
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