When phenol reacts with phthalic anhydri...

When phenol reacts with phthalic anhydride in presence of `H_2SO_4 ` and heated and hot reaction mixture is poured in ` NaOH` solution. The product formed is

A

Alizarin

B

Methyl orange

C

Fluorescein

D

Phenolphthalein

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The correct Answer is:

D

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