Question

You have hibiscus and turmeric powder indicators. Classify vinegar,lime water, baking
powder, detergent powder, lemon juice, toothpaste into acidic and alkaline materials
on the basis of colour change.
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Answer 1

Answer:

When turmeric powder is dissolved in water and a pinch of lime is added to it, the organic acids are neutralized by alkaline lime. As a result, the yellow xanthophyll is suppressed and the orange-red carotene pigment becomes more prominent, so the turmeric turns red.