Question

distinguish distinguish between a common acid base indicator and universal indicator​

Answer 1

Explanation: hello friend,

first acid,base indicators,

i). A substance which liberates H positive ions when dissolved in water is an acid.

ii). A substance which liberates OH negative ions in water is called a base.

iii). Some natural and synthetic dyes show two different colors in acidic and base solution, and such dyes are acid- base indicators.

iv). Blue and red litmus paper are used to the acid or base.

-------++++--------++++---------++++--------+++------++--------+++

Universal indicators,

i).A universal indicator is made by mixing several synthetic indicators in specific proportions.

ii). In the pH scale,the pH of solution varies from 0 to 14 in accordance with the strength of the acid or base.

iii). To show these variation in pH,a universal is used.A universal indicator shows different colors at different values of pH.

iv). The pH of a solution can be determined by means of universal indicator solution or the pH paper made from it.

v). However, the most accurate method of measuring the pH of a solution is to use an electrical instrument called pH meter.

@@@@@@@@@@@@@@@@@@@

............I hope this will helps you..............