Chapter revision - Exploring substances: Acids, Bases and neutral. Chemistry CBSE Live product, Class 7 (2026-27): lessons, tests, tasks.

1.	Natural indicators
2.	Neutralisation reaction

1.	Activity - Identifying acids, bases, and neutral substances using indicators Difficulty: hard	4
2.	Litmus as an indicator Difficulty: hard	3
3.	TBQ - Effect of natural indiators Difficulty: hard	4
4.	TBQ - Neutralisation reaction using indicators Difficulty: hard	3
5.	Importance of pH Difficulty: hard	3

Methodical recommendation

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Chapter revision - Exploring substances: Acids, Bases and neutral