Carbolic acid is the name used for:

1. Opium 

2. Phenol

3. Chloroform

4. H2CO3

Subtopic:  Phenols: Preparation & Properties |
 78%
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When phenol is reacted with chloroform and an alkali like NaOH, the compound formed is salicylaldehyde. If we use pyrene in place of chloroform the product obtained is:

(1) salicylaldehyde

(2) phenolphthalein

(3) salicylic acid

(4) cyclohexanol

Subtopic:  Phenols: Preparation & Properties |
 58%
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Which represents Reimer-Tiemann reraction ?
(1)

(2)

(3)

(4)

Subtopic:  Phenols: Preparation & Properties |
 91%
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When phenol is treated with excess bromine water, it gives:

(1) m-bromophenol

(2) o- and p-bromophenol

(3) 2,4-dibromophenol

(4) 2,4,6-tribromophenol

Subtopic:  Phenols: Preparation & Properties |
 89%
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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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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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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%
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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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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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