It is a pH indicator, I guess. Is it right Stiffi???
It is a solution or mixture of several indicators.... it can undergo a large range of colour change .... That colour directly indicates the exact Ph of a solution or substance,,,... it is mostly used to test the acid or alkalis in a solution...
A universal indicator is a pH indicator that shows a wide range of colors to indicate the acidity or basicity of a solution. Its main advantage is the ability to provide a detailed pH measurement, unlike other indicators that typically offer limited color changes. This makes it a useful tool in various scientific contexts.
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