Reactions of Phenols
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323343 Phenol reacts with which one of the following reagents to gives a conjugate diketone .

1 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)
2 conc. \(\mathrm{HNO}_{3}\)
3 \(\mathrm{Zn}, \Delta\)
4 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323344 Identify the reagent(s) needed to carry out the following reaction.
supporting img

1 \(\mathrm{Na}\)
2 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}, \mathrm{H}_{2} \mathrm{SO}_{4} / \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{LiAlH}_{4}\)
4 \(\mathrm{NaOH}\)
NCERT Exemplar
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323345 The main product obtained from phenol with \(\mathrm{PCl}_{5}\) is

1 \(\mathrm{BHC}\)
2 hexachlorobenzene
3 chlorobenzene
4 triphenyl phosphate
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323346 Assertion :
The reaction between phenol and benzoyl chloride in presence of \(\mathrm{NaOH}\) is called Schotten Baumann reaction.
Reason :
Phenol on reaction with \(\mathrm{Zn}\) dust gives benzene.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323343 Phenol reacts with which one of the following reagents to gives a conjugate diketone .

1 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)
2 conc. \(\mathrm{HNO}_{3}\)
3 \(\mathrm{Zn}, \Delta\)
4 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323344 Identify the reagent(s) needed to carry out the following reaction.
supporting img

1 \(\mathrm{Na}\)
2 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}, \mathrm{H}_{2} \mathrm{SO}_{4} / \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{LiAlH}_{4}\)
4 \(\mathrm{NaOH}\)
NCERT Exemplar
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323345 The main product obtained from phenol with \(\mathrm{PCl}_{5}\) is

1 \(\mathrm{BHC}\)
2 hexachlorobenzene
3 chlorobenzene
4 triphenyl phosphate
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323346 Assertion :
The reaction between phenol and benzoyl chloride in presence of \(\mathrm{NaOH}\) is called Schotten Baumann reaction.
Reason :
Phenol on reaction with \(\mathrm{Zn}\) dust gives benzene.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323343 Phenol reacts with which one of the following reagents to gives a conjugate diketone .

1 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)
2 conc. \(\mathrm{HNO}_{3}\)
3 \(\mathrm{Zn}, \Delta\)
4 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323344 Identify the reagent(s) needed to carry out the following reaction.
supporting img

1 \(\mathrm{Na}\)
2 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}, \mathrm{H}_{2} \mathrm{SO}_{4} / \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{LiAlH}_{4}\)
4 \(\mathrm{NaOH}\)
NCERT Exemplar
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323345 The main product obtained from phenol with \(\mathrm{PCl}_{5}\) is

1 \(\mathrm{BHC}\)
2 hexachlorobenzene
3 chlorobenzene
4 triphenyl phosphate
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323346 Assertion :
The reaction between phenol and benzoyl chloride in presence of \(\mathrm{NaOH}\) is called Schotten Baumann reaction.
Reason :
Phenol on reaction with \(\mathrm{Zn}\) dust gives benzene.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323343 Phenol reacts with which one of the following reagents to gives a conjugate diketone .

1 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)
2 conc. \(\mathrm{HNO}_{3}\)
3 \(\mathrm{Zn}, \Delta\)
4 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{SO}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323344 Identify the reagent(s) needed to carry out the following reaction.
supporting img

1 \(\mathrm{Na}\)
2 \(\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}, \mathrm{H}_{2} \mathrm{SO}_{4} / \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{LiAlH}_{4}\)
4 \(\mathrm{NaOH}\)
NCERT Exemplar
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323345 The main product obtained from phenol with \(\mathrm{PCl}_{5}\) is

1 \(\mathrm{BHC}\)
2 hexachlorobenzene
3 chlorobenzene
4 triphenyl phosphate
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323346 Assertion :
The reaction between phenol and benzoyl chloride in presence of \(\mathrm{NaOH}\) is called Schotten Baumann reaction.
Reason :
Phenol on reaction with \(\mathrm{Zn}\) dust gives benzene.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
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