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A student dips blue litmus paper in lemon juice and it turns red. The juice is:
AAcidic
BBasic
CMetals
DOxides
Answer & Solution
Correct answer: A. Acidic
1. Acids turn blue litmus red.
2. The paper changed from blue to red here.
3. So the lemon juice is acidic.
_Source: syllabus Science Class X, Chapter 2, Acids, Bases and Salts._
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