Welcome to Pooja teachers guild. In this video we will be discussing CBSE class 7th science Chapter 2 exploring substance acidic basic and neutral exploring substances acidic basic and neutral class 7 exploring substances acidic basic and neutral class 7 question answer exploring substances acidic basic and neutral question answer exploring substances acidic basic and neutral tones exploring substances acidic basic and neutral class 7 science exploring substances acidic basic and neutral mcq exploring substances acidic basic and neutral exploring substances acidic basic and neutral exploring substances acid base and neutral chapter 2 exploring substances acidic basic and neutral class 7 science exploring substances acidic basic and neutral class 7 science chapter 2 exploring substances acidic basic and neutral notes class 7th science chapter 2 exploring substances acidic basic and neutral ncert class 7 science chapter 2 exploring substances acidic basic and neutral class 7 science chapter 2 exploring substances acidic basic and neutral class 7 science chapter 2 exploring substances acidic basic and neutral question answer exploring substances acidic basic and neutral class 7 class 7 science chapter 2 exploring substances acidic basic and neutral notes class 7th science chapter 2 exploring substances acidic basic and neutral ncert class 7 science chapter 2 exploring substances acidic basic and neutral class 7th science chapter 2 exploring substances class 7 science chapter 2 exploring substances acidic basic and neutral class 7 science chapter 2 exploring substances acidic basic and neutral question answer