Explain procedure for checking the presence of rhodamine b, Biology

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Explain Procedure for Checking the Presence of Rhodamine B?

Conduct the experiment following the procedure given herewith:

1. Pour liquid paraffin or mineral oil in a Petri dish.

2. Soak the cotton swab in it.

3. Rub the swab on the surface of a red chilli and observe it for a red colour.

4. Red colour on cotton is a positive test.

5. For chilli powder, shake small quantity (1 tea spoon) of it with paraffin oil. Keep it for 15 minutes with intermittent shakings. Check the colour.


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