Question

1. Explain the concept of pH?

2. What makes red cabbage juice an acid base indicator?

Answer 1

1.pH denotes for 'potential of hydrogen' or 'power of hydrogen') is a scale used to specify the acidity or basicity of an aqueous solution? The pH value can be less than 0 for very strong acids or greater than 14 for very strong bases.

2.Red cabbage contains a water-soluble pigment called anthocyanin that changes color when mixed with an acid or a base.