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Chemistry CBSE Live product
Class 7 (2026-27)
Exploring Substances: Acidic, Basic, and Neutral
PT1 Revision I - Exploring Substances: Acidic, Basic and Neutral
1.
Acid-base indicator vs olfactory indicator
Question:
2
m.
Pick
the
correct
answer for the following:
1.
Which of the following is an acid-base indicator?
Onion
Vanilla essence
Litmus paper
Clove oil
2.
Which property of an olfactory indicator helps identify acids and bases?
Smell
Colour
Taste
Shape
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