Question

Which is used as a home remedy for acidity- lemon juice, vinegar or baking soda solution? Why? How do we test sour and bitter substances without tasting them? Why does the stain of curry on a cloth turn reddish-brown when soap is scrubbed on it?

Answer 1

baking soda is base which neutralize acidity. Acids taste sour and bases taste bitter. So a litmus test can be prefered to identify it. curry can contain turmeric which is an indicator. it turns bases to red color.

Answer 2

Answer:

Curry contains turmeric. Turmeric is an indicator which gives red colour with a base since soap is a base so we get red colour