yes, turmeric acts as a natural pH indicator. It remains yellow
( which is its original colour) in acidic or neutral substances and
turns red with bases.
we can test this in home by the following way:-
- basic substance
check: For this we can use soap solution or baking soda
whichever is available and make its solution in pure water, Add
turmeric to it and we can observe that the colour will change from
yellow to red. This colour change confirms that the soap/baking
soda solution is basic.
- acidic substance check: For this we can use lemon or vinegar
whichever is available and make its solution in pure water, Add
turmeric to it and we would observe that the colour of the solution
remains yellow(does not changes to red) . This confirms the
solution is acidic.
Hope this is helpful,please rate if this solution is helpful,
thank you.