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Chemistry CBSE Live product
Class 7 (2025-26)
Exploring Substances: Acidic, Basic, and Neutral
Revision I - Exploring Substances: Acidic, Basic, and Neutral
4.
Characteristics of natural indicators
Question:
1
m.
Pick out
the
correct answer
for the following question:
Assertion (A)
Litmus is a natural indicator obtained from
lichens
.
Reason (R)
Litmus turns red to blue for acids.
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
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