Question 3 — Observe and analyse Figs. 2.13, 2.14 - Questions at the end of the chapter - Chapter 2 Class 7 - Exploring Substances: Acidic, Basic, and Neutral

Last updated at August 16, 2026 by

Q3 (Easy): Observe and analyse Figs. 2.13, 2.14, and 2.15, in which red rose extract paper strips are used. Label the nature of solutions present in each of the containers.

Answer:
We have studied that red rose extract gives red colour in acidic solutions and green colour in basic solutions . Based on the science:

  • Red colour indicates acidic solution
  • Green colour indicates basic solution
  • No colour change indicates neutral solution
Red Rose Extract Colours Colour Acidic Solutions Basic Solutions Red rose extract colour Red Green Examples Lemon juice, vinegar Soap, baking soda Nature Sour taste Bitter taste
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