Question

3. What are indicators? Why do we use ? give example
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Answer 1

Answer:

indicators are the substances which indicates a particular substance is having acidic or basic or neutral properties..

we use them to indicate or know about the substance is acid or base or neutral..

H2SO4 - pink colour = acid

Answer 2

Answer:

Indicator is any substance which is used to detect the acidity and basicity of a solution.

Explanation:

we use indicator to know the nature of a solution by giving a noticeable change like change in colour, smell

ex- turmeric natural indicator

onion olfactory indicator

methyl orange synthetic indicator