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Chemistry CBSE Live product
Class 7 (2026-27)
Exploring Substances: Acidic, Basic, and Neutral
Chapter revision - Exploring substances: Acids, Bases and neutral
4.
TBQ - Neutralisation reaction using indicators
Question:
3
m.
Answer the following questions given below
with the
correct
answer:
Statement:
Blue litmus paper turns red in liquid X.
i. Nature of liquid X?
Salt
Neutral
Basic
Acidic
ii. what happens when
Lime water
is added to liquid X in excess?
Acidic
Neutral
Basic
Sugar solution
iii. What type of reaction takes place?
Physical change reaction
Burning reaction
Neutralisation reaction
Change of colour reaction
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