When phenol is heated with phthalic anhydride and H2SO4 , it produces

Question

When phenol is heated with phthalic anhydride and H2SO4 , it produces (A) Phenol red (B) Methyl orange (C) Salicylic acid (D) Phenolphthalein

Tardigrade Admin · Accepted Answer

In the presence of conc. H2SO4 , two molecules of phenol condense with phthalic anhydride to form phenolphthalein <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-vsupu0lumvik.png" />

Q. When phenol is heated with phthalic anhydride and $H_{2} S O_{4}$ , it produces

Phenol red

Methyl orange

Salicylic acid

Phenolphthalein

In the presence of conc. $H_{2} S O_{4}$ , two molecules of phenol condense with phthalic anhydride to form phenolphthalein

Q. When phenol is heated with phthalic anhydride and H2​SO4​ , it produces