Question

Smita took a spoon of turmeric powder and made a paste by adding little water to it. She cut thin strips of a paper and applied this paste on them. After drying she put few drops of given sample solutions (i)-(iv) on these strips. What would be the changes in the colour she observed?

(i) Amla juice
(ii) Lime water
(iii) Common salt solution
(iv) Baking soda solution

• A. (i) - Yellow, (ii) - Red, (iii) - Yellow, (iv) - Red
• B. (i) - Red, (ii) - Yellow, (iii) - Yellow, (iv) - Red
• C. (i) - Red, (ii) - Red, (iii) - Yellow, (iv) - Yellow
• D. (i) - Yellow, (ii) - Yellow, (iii) - Red, (iv) - Red

Answer 1

The correct option is A (i) - Yellow, (ii) - Red, (iii) - Yellow, (iv) - Red

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

	Sample solution	Nature of solution	Colour of turmeric paper
(i)	Amla juice	Acidic	Yellow
(ii)	Lime water	Basic	Red
(iii)	Common salt solution	Neutral	Yellow
(iv)	Baking soda solution	Basic	Red