Question

• Take a tablespoonful of turmeric powder. Add a little water and make a paste. Apply turmeric paste on a sheet of plane white paper and dry it. Cut thin strips of the yellow paper. test the solutions listed below and note down your observations. You may try solutions of other substances also. S. No. Test solution Effect on turmeric solution Remarks 1. Lemon juice 2. Vinegar 3. soap 4. Baking soda 5. Sugar solution Common salt​

Answer 1

Turmeric is yellow in acidic and neutral solutions and red in basic solution.

Sample solution - Nature of solution - Color

(i) Amla juice - Acidic - Yellow

(ii) Lime water. - Basic. - Red

(iii) Common salt - Neutral - Yellow

(iv) Baking soda - Basic - Red