A) phenol phthalein
B) bake lite
C) salicylic acid
D) fluorescein
Correct Answer: A
Solution :
Phenol is heated with phthalic anhydride in presence of conc. \[{{H}_{2}}S{{O}_{4}}\] to give phenolphthalein which gives pink colour with alkaliYou need to login to perform this action.
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