Question

what is universal indicators​

Answer 1

A universal indicator is a pH indicator made of a solution of several compounds that exhibits several smooth colour changes over a wide range pH values to indicate the acidity or alkalinity of solutions. ... Wide-range pH test papers with distinct colours for each pH from 1 to 14 are also available.

Answer 2

Answer:

a substance which changes its colour when it comes in contact with acid or base .ex:litmus paper