Question

how do you prepare natural indicators ​

Answer 1

you can prepare china rose indicator it's very easy....

Take Hibiscus flowers and separate its petals then take a container and submerge the petals after that boil it for sometime till the water colour changes to light pink then take a acidic substance and a basic substance....if you put the indicator in basic the light pink colour will change in green and if you put it in acidic the colour will change from light pink to dark pink....

hope it helps you....