Question

How do indicators react with acids and bases?

Answer 1

Answer:

they change their colour

if it's acid, then it will turn red

if it's base then it will turn purple

HOPE IT HELPED

Answer 2

Indicators change colour or smell when added with an acid or a base. The indicators which change colour when mixed with an acid or a base are known as visual indicators and the indicators which change smell when added to an acid or a base are known as olfactory indicators. Examples of natural indicators are : turmeric, china rose etc . Examples of synthetic indicators are ; Phenophtalein , methyl orange etc.