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Q.

The indicator which turns pink colour in an alkaline solution is: 

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a

Methyl orange

b

Turmeric powder

c

Phenolpthalein 

d

China rose 

answer is C.

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Detailed Solution

Phenolphthalein is a synthetic indicator. Which appears colorless in acid and turns pink in basic solution. 

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The indicator which turns pink colour in an alkaline solution is: