Question

1 write one different between acid-base indicator and pH indicator.
2 How are alkali different from base

Answer 1

Answer:

Explanation:

1 Acid base indicators are chemical substances that can give a color change in a reaction medium as a response to a change in pH. These indicators are used to identify the termination of an acid-base reaction. They are also called pH indicators. They are usually either weak acids or weak bases.

2. Alkalis are also bases but the difference between them is,alkalis are soluble in water but the bases doesn't. Bases are substances that react with acids and neutralise them. ... Many bases are insoluble - they do not dissolve in water. If a base does dissolve in water, we call it an alkali.