Question

How litmus comes under both synthetic and natural indicator?

Answer 1

litmus is made up of some natural substance so act as a natural indicator......it form from natural plant Dye...
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..if mine ans is wrong so .sorry j

Answer 2

Litmus solution is a purple dye, which is extracted from lichen , a plant belonging to the division Thallophyta, and is commonly used as an indicator . when the litmus solution is neither acidic nor basic, its colour is purple . There are many other natural materials like red cabbage leaves , turmeric , coloured petals of some flowers such as Hydragea, Petunia and Geranium , which indicate the presence of acid or base in a solution . These are called acid -base indicators or sometimes simply indicators .