write a short note on Litmus as an indicator
Answers
Litmus is a natural indicator . Litmus solution is a purple colour dye which is extracted from a type of plant called lichen . Litmus has a purple colour or mauve colour in water . Litmus solution is neither acidic or basic then its colour is purple . When Litmus is added to an acidic solution it turns red and when Litmus is added to a basic solution it turns blue . Litmus is made into two types blue Litmus and red litmus Litmus . It can be used in the form of solution or strips of paper with are blue Litmus Paper and red litmus paper .
Answer:
Explanation:
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 others natural materials like red cabbage leaves , turmeric , coloured petals of some flowers such as hydrangea, Petunia , germanium which indicate the presence of acid or base in a solution.
THESE are called acid- base indicators or sometimes simple indicators.