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# Name the dye whose chemical structure is shown :

$(a)\;\text{Indigo} \\ (b)\;\text{Antraquinone dye} \\(c)\;\text{Malachite green} \\ (d)\;\text{Phenolphthalein dye}$
Can you answer this question?

Since the chemical structure consists of the group phthalein
It is phendphthalein dye.
Hence d is the correct answer.
answered Mar 10, 2014 by