In the reaction, Phenol DIstillationZn(A) Conc. HNO3 at 60°CConc. H2SO4(B) NaOH(aq)Zn(C)

The compounds (A),(B) and (C) are of the following:

(1) benzene, nitrobenzene and aniline

(2) benzene, dinitrobenzene and m-nitroaniline

(3) toluene, m-nitrobenzene and m-toluidine

(4) benzene, nitrobenzene and hydrazobenzene

Subtopic:  Phenols: Preparation & Properties |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Phenol on oxidation gives chloranil. The oxidant used is:

1. K2S2O8

2. KMnO4

3. KCIO3 + HCl

4. none of these

Subtopic:  Phenols: Preparation & Properties |
 64%
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NEET 2023 - Target Batch - Aryan Raj Singh
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A characteristic group test for phenolic gp. is:

1. Liebermann's nitroso reaction

2. coupling with diazonium salt

3. aqueous FeCl3

4. all of the above

Subtopic:  Phenols: Preparation & Properties |
 74%
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Phenol can be converted into salicylic acid by

1. Etard's reaction

2. Kolbe's reaction

3. Phenol with CCl4 in basic medium

4. both (2) and (3) 

Subtopic:  Phenols: Preparation & Properties |
 58%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Resorcinol and conc. H2SO4 in presence of phthalic anhydride produce a compound which is:

1. a dye                             

2. an antiseptic

3. an indicator                   

4. a detergent

Subtopic:  Phenols: Preparation & Properties |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Phenol is weakly acidic but does not react with NaHCO3 like carboxylic acids hence:-

1. phenol is weaker than carbonic acid

2. phenol is stronger than carbonic acid

3. phenol is stronger than carboxylic acid

4. none of the above

Subtopic:  Phenols: Preparation & Properties |
 81%
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An organic compound C7H8O is neither soluble in NaOH nor gives blue colour with FeCl3, is:

(1) C6H5.CH2OH                 

(2) C6H4<OHCH3

(3) C6H5.OCH3                   

(4) none of these

Subtopic:  Ethers: Preparation & Properties, Uses |
 67%
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NEET 2023 - Target Batch - Aryan Raj Singh
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The electrophile involved in the above reaction is:
1. dichloromethyl cation (CHCl2)
2. dichlorocarbene (:CCl2)
3. trichloromethyl anion (CCl3)
4. formyl cation (CHO)

Subtopic:  Phenols: Preparation & Properties |
 81%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following reagents may be used to distinguish between phenol and benzoic acid?

1. Aqueous NaOH

2. Tollens reagent

3. Molisch reagent

4. Neutral FeCl3

Subtopic:  Phenols: Preparation & Properties |
 68%
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NEET 2023 - Target Batch - Aryan Raj Singh
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In the given transformation, which of the following is the most appropriate reagent ?

(1) Zn-Hg/HCl

(2) Na, Liq. NH3

(3) NaBH4

(4) NH2NH2,OH

 

Subtopic:  Alcohols: Preparation & Properties |
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NEET 2023 - Target Batch - Aryan Raj Singh
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