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Chemistry CBSE Live product
Class 7 (2026-27)
Exploring Substances: Acidic, Basic, and Neutral
Neutralisation Reaction
9.
Reversal of litmus colour during neutralisation
Question:
1
m.
Analyse
the questions given below and
select
the correct answer:
An acidic solution turns blue litmus red. When an excess base is added for neutralisation, what is the final change?
No change in litmus
Red litmus turns blue
Blue litmus stays red
Litmus disappears
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