Question

A substance which turns turmeric solution reddish brown

Answer 1

Answer:

this is how we identify acids by the use of turmuric paper. 2 ans: We know soap is a base and turmuric is a basic indicator. so when we apply soap in the turmeric stain the stain transforms from its yellow colour to red colour

Answer 2

The answer is - Base.

ANSWER

• Turmeric is a natural acid-base indiactor.
• When a base is added to it, the yellow color changes to reddish brown.

Turmeric(Yellow) + Base ---------> Reddish brown color.

• This color change is reversed when acid is added to it.
• Curcumin pigment is responsible for the color change of turmeric.
• A natural indicator is a type of indicator that is found in the nature and helps to determine the substabce as acid or base.
• Other examples are, cabbage, grape juice, turnip cherries, onions, tomatoes etc.
• Natural indicators are cheap, non -toxic and non-polluting as compared to synthesized indicators.

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