Acids Bases Class 7 Ncert

4.4

4.2

4.2

4.2

3.8

4.1

4.2

3.6

4.1

4.4

4

4.7

4.3

3.9

4.2

4.3

4.1

4.5

4.4

4.1

4.2

4.3

4.3

4

4.1

4.1

4.1

4

4.2

4.3

4.3

4.6

4.6

4.5