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Question
Chemistry
The number of benzene rings in the structure of phenolphthalein are
Q. The number of benzene rings in the structure of phenolphthalein are
142
148
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NTA Abhyas 2022
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Answer:
3
Solution:
Phenolphthalein can be synthesized by condensation of phthalic anhydride with two equivalents of phenol under acidic conditions. In the overall structure there are three benzene rings are there.
Structure of phenolphthalein: