Which indicator gives pink colour in alkali?

Q. Which indicator gives pink colour in alkali?

A

Phenolphthalein

B

Methyl Orange

C

Hibiscus paper

D

Turmeric

Solution:

Methyl Orange – Pale pink ( Acid ) , Pale yellow ( Alkali )
Turmeric – Yellow ( acid ) , Red ( Alkali )
Phenolphthalein – Colourless ( Acid ) , Pink ( Alkali )
Hibiscus paper ( blue ) – Red ( Acid ) , Blue ( Alkali )

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