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Phenol on reaction with a mixture of conc. HNO₃ and conc. H₂SO₄ produces a compound. What is the degree of unsaturation present in the compound and nature of compound ?

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Important Questions on Alcohols, Phenols and Ethers

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

The acid which contains both -OH and -COOH groups is

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The functional group which is formed when Phenol is made to react with Chloroform in the presence of dilute Sodium hydroxide

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

The major product of the following reaction is:

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Which of the following compounds will not be soluble in sodium bicarbonate?

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p

-cresol reacts with chloroform in an alkaline medium to give compound

A

, which adds hydrogen cyanide to form compound

B

. The latter on acidic hydrolysis gives chiral carboxylic acid. What is the structure of carboxylic acid?

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Which one of the following is the most acidic compound?

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Arrange the following compounds in order of decreasing acidity :
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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

Phenol reacts with methyl chloroformate in the presence of

NaOH

to form product

A . A

reacts with

{Br}_{2}

to form product

B . A and B

are respectively

EASY

Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

Phenol in presence of sodium hydroxide reacts with chloroform to form salicylaldehyde. The reaction is known as:

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

The major product of the following reaction is:

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

What is the product "C" after following reactions -

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

The

p -

cresol reacts with chloroform in alkaline medium to give the compound

A

, which adds hydrogen cyanide to form the compound

B

. The latter, on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

Which one of the following substituents at para-position is most effective in stabilizing the phenoxide Question Image

ion ?

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The compound which reacts with excess bromine to produce 2, 4, 6 - tribromophenol, is

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Phenol on treatment with

C O_{2}

in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment with

{(C H_{3} C O)}_{2}

O in the presence of catalytic amount of

H_{2} S O_{4}

produces:

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

The major products of the following reaction are:
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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

The organic compound that gives following qualitative analysis is:

	Test	Inference
$(a)$	$D i l . H C l$	Insoluble
$(b)$	$N a O H s o l u t i o n$	Soluble
$(c)$	$B r_{2} / w a t e r$	Decolourization

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

The increasing order of the $p K a$ values of the following compounds is:
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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

What is $Z$ in the following sequence of reactions?
$Phenol \overset{Zn dust}{\to} X \overset{{CH}_{3} Cl / Anhydrous {AlCl}_{3}}{\to} Y \overset{Alkaline {KMnO}_{4}}{\to} Z$

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Chemistry>Organic Chemistry>Alcohols, Phenols and Ethers>Chemical Properties of Phenols

In the reaction, the electrophile involved is
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Phenol on reaction with a mixture of conc. HNO3 and conc. H2SO4 produces a compound. What is the degree of unsaturation present in the compound and nature of compound ?

Important Questions on Alcohols, Phenols and Ethers

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Phenol on reaction with a mixture of conc. HNO₃ and conc. H₂SO₄ produces a compound. What is the degree of unsaturation present in the compound and nature of compound ?