Chemical Properties of Phenols

When sodium phenoxide is heated with carbon dioxide under pressure, sodium salicylate is obtained as major product. This on acidification given salicylic acid. This reaction is known as

​The electrophile involved in the above reaction is

​The electrophile involved in the above reaction is

The structure of the compound that gives a tribromo derivative on treatment with bromine water is –

The structure of the compound that gives a tribromo derivative on treatment with bromine water is

p-cresol reacts with chloroform in alkaline medium to give the compound $\mathrm{A}$ which adds hydrogen cyanide to form the compound$\mathrm{B}$ . The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is –

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

A compound $\text{'}\mathrm{X}\text{'}$ when treated with phthalic anhydride in presence of concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ yields $\text{'}\mathrm{Y}\text{'}$. $\text{'}\mathrm{Y}\text{'}$ is used as an acid/base indicator. $\text{'}\mathrm{X}\text{'}$ and $\text{'}\mathrm{Y}\text{'}$ are respectively

Increasing order of the following for the electrophilic substitution reaction as:

Which of the following compound is most acidic?

Write down the products for the following reaction:

The correct order of acidic nature is 

In Kolbes reaction the reacting substances are

An organic compound with molecular formula ${\mathrm{C}}_7{\mathrm{H}}_8\mathrm{O}$ dissolves in $\mathrm{NaOH}$ and gives a characteristic colour with ${\mathrm{FeCl}}_3$. On treatment with bromine, it gives a tribromo derivative ${\mathrm{C}}_7{\mathrm{H}}_5{\mathrm{OBr}}_3$. The compound is

Which of the following statements are correct for phenol?

(A) In general, phenol is more acidic than alcohol.

(B) Phenol is used in the production of melamine plastic.

(C) Phenol gives violet colour with neutral ferric chloride solution.

(D) Phenol when heated with acetyl chloride gives phenetole.

$\mathrm{A},\mathrm{B},\mathrm{C},\mathrm{D}$ in the following reactions are

The major product of the following reactions is

The correct order of acidity of the following is

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How many covalent bond(s) is/are present in one molecule of $\left(Y\right)$?