323348
Phenolphthalein is obtained by heating phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 Phenol
2 Benzyl alcohol
3 Benzene
4 Benzoic acid
Explanation:
Phenol on reaction with phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) produces Phenolphthalein.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323349
Phenolic group can be identified by a positive
1 Lucas test
2 Carbylamine test
3 Phthalein test
4 Tollen's test
Explanation:
In Phthalein test, phenol is heated with phthalic anhydride in the presence of concentrated sulphuric acid to form a colourless condensation compound called phenolphthalein.
JEE - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323350
Phenol is heated with phthalic anhydride in the presence of conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). The product gives pink colour with alkali. The product is
323348
Phenolphthalein is obtained by heating phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 Phenol
2 Benzyl alcohol
3 Benzene
4 Benzoic acid
Explanation:
Phenol on reaction with phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) produces Phenolphthalein.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323349
Phenolic group can be identified by a positive
1 Lucas test
2 Carbylamine test
3 Phthalein test
4 Tollen's test
Explanation:
In Phthalein test, phenol is heated with phthalic anhydride in the presence of concentrated sulphuric acid to form a colourless condensation compound called phenolphthalein.
JEE - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323350
Phenol is heated with phthalic anhydride in the presence of conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). The product gives pink colour with alkali. The product is
323348
Phenolphthalein is obtained by heating phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 Phenol
2 Benzyl alcohol
3 Benzene
4 Benzoic acid
Explanation:
Phenol on reaction with phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) produces Phenolphthalein.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323349
Phenolic group can be identified by a positive
1 Lucas test
2 Carbylamine test
3 Phthalein test
4 Tollen's test
Explanation:
In Phthalein test, phenol is heated with phthalic anhydride in the presence of concentrated sulphuric acid to form a colourless condensation compound called phenolphthalein.
JEE - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323350
Phenol is heated with phthalic anhydride in the presence of conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). The product gives pink colour with alkali. The product is
323348
Phenolphthalein is obtained by heating phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 Phenol
2 Benzyl alcohol
3 Benzene
4 Benzoic acid
Explanation:
Phenol on reaction with phthalic anhydride with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) produces Phenolphthalein.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323349
Phenolic group can be identified by a positive
1 Lucas test
2 Carbylamine test
3 Phthalein test
4 Tollen's test
Explanation:
In Phthalein test, phenol is heated with phthalic anhydride in the presence of concentrated sulphuric acid to form a colourless condensation compound called phenolphthalein.
JEE - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323350
Phenol is heated with phthalic anhydride in the presence of conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). The product gives pink colour with alkali. The product is