The reactivity of compound Z with different halogens under appropriate conditions is given below: The observed pattern of electrophilic substitution can be explained by

The electronic effect of the phenolic group

The electronic effect of the tert-butyl group

EASY

Earn 100

Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives

50% studentsanswered this correctly

Important Questions on Alcohols, Phenols and Ethers

HARD

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

MEDIUM

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

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

HARD

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

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:

MEDIUM

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

HARD

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

In the following reaction, the product(s) formed is/are:

Question Image

Question Image

HARD

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

The reactivity of compound Z with different halogens under appropriate conditions is given below:
Question Image

The observed pattern of electrophilic substitution can be explained by

EASY

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 ?

EASY

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

Match the following $pKa$ values.

	Acid		$pKa$
(a)	Phenol	(i)	$16$
(b)	$p$ -Nitrophenol	(ii)	$0.78$
(c)	Ethanol	(iii)	$10$
(d)	Picric acid	(iv)	$7.1$

HARD

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

The major product(s) of the following reaction is/are:

Question Image

MEDIUM

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

Which one of the following is the most acidic compound?

HARD

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

The major products of the following reaction are:
Question Image

HARD

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

The major product of the following reaction is:

Question Image

MEDIUM

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

What will be the major product when m-cresol is reacted with propargyl bromide

(H C \equiv C - C H_{2} B r)

in presence of

K_{2} C O_{3}

in acetone?

HARD

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:
Question Image

MEDIUM

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

Which of the following will not be soluble in sodium hydrogen carbonate?

MEDIUM

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

Which of the following substituted phenols is the strongest acid?

HARD

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

A solution of phenol in chloroform when treated with aqueous

NaOH

gives compound

P

as a major product. The mass percentage of carbon in

P

is ______ .

HARD

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

What is the product "C" after following reactions -

Question Image

MEDIUM

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

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

MEDIUM

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

Arrange the following compounds in order of decreasing acidity :
Question Image

Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives

Important Questions on Alcohols, Phenols and Ethers

Learn and Prepare for any exam you want !