When soap is scrubbed on a stain of curry on a white cloth,why does it become reddish-brown,and why does it turn yellow again when the cloth is washed with plenty of water?

  • A
    Soap reacts with turmeric to form a new compound.
  • B
    Turmeric acts as a natural acid-base indicator.
  • C
    The soap is acidic in nature.
  • D
    The water neutralizes the soap.

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Similar Questions

List-$I$ contains aqueous solutions,and List-$II$ contains their corresponding $pH$ values. Which of the following matches is correct?
List-$I$List-$II$
$1.$ Vinegar solution$a.$ $pH = 7.4$
$2.$ Blood$b.$ $pH = 2.5$
$3.$ Washing soda solution$c.$ $pH = 7.0$
$4.$ Pure water$d.$ $pH = 12$

To protect against tooth decay,we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is:

Common salt, besides being used in the kitchen, can also be used as the raw material for making:
$(i)$ Washing soda
$(ii)$ Bleaching powder
$(iii)$ Baking soda
$(iv)$ Slaked lime

Why is $HCl$ a stronger acid than acetic acid?

According to the Arrhenius theory,which ion is produced when a base ionizes in water?

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