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Chemistry CBSE Live product
Class 10 (2026-27)
Acids, bases and salts
Introduction to acids, bases and salts
4.
Indicators
Question:
1
m.
Select
the
correct option
answer:
Assertion (A)
If a solution turns phenolphthalein pink but does not change blue litmus, the solution must be basic
Reason (R)
Methyl orange turns yellow in base and red in acid
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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