Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed

(a) Yellow in both acid and base.

(b) Yellow in acid and red in the base.

(c) Pink in acid and yellow in the base.

(d) Red in acid and blue in the base.

Question

Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed

(a) Yellow in both acid and base.

(b) Yellow in acid and red in the base.

(c) Pink in acid and yellow in the base.

(d) Red in acid and blue in the base.

Accepted Answer

Soln:
The answer is (b) Yellow in acid and red in the base.
Explanation:
Turmeric paste is yellow in colour, and it is acidic in nature hence it remains yellow in acid, whereas it is converted to red due to neutralization by the base.

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