Question

explain the steps involved in the preparation of indicator from China rose petals

Answer 1

Here is the answer :-


Collect some China rose (Gudhal ) petals and place them in a beaker. Add some warm water. Keep the mixture for some time till water becomes coloured. Use the coloured water as an indicator. Add five drops of the indicator to each of the solutions. 

A solution of china rose turns green in a basic solution, and bright pink or magenta in an acidic solution.

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Answer 2

Answer:

Soak some petals of china rose in warm water for a couple of hours. The red-coloured solution is used as an indicator for detecting an acid or a base solution. It turns into magenta in acidic medium and green in basic medium. Hence, it is a natural indicator.

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