Sathya 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 changes in the colour she observed?
i) Amla juice                          ii) Lime water
iii) Common salt solution      iv) Baking soda solution