Question 10 — Three liquids are given to you. - Questions at the end of the chapter - Chapter 2 Class 7 - Exploring Substances: Acidic, Basic, and Neutral

Last updated at August 16, 2026 by

Q10 (Medium): Three liquids are given to you. One is vinegar, another is a baking soda solution, and the third is a sugar solution. Can you identify them only using turmeric paper? Explain.

Answer:
We have studied that turmeric paper turns red in basic solutions but shows no change in acidic and neutral solutions. This is why we cannot identify all three.

  • Baking soda (basic) - turns turmeric red
  • Vinegar (acidic) - no colour change
  • Sugar solution (neutral) - no colour change
  • Cannot distinguish between vinegar and sugar
Turmeric Paper Test Results Result Basic Solution Acidic/Neutral Solutions Baking soda Turns red Can identify Vinegar No change Cannot distinguish Sugar solution No change Cannot distinguish Conclusion Identifiable Look the same
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