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

Choose the one, which posses highest acidic strength

Among the following phenols, the strongest is

The incorrect statement about $\mathrm{X}, \mathrm{Y} \mathrm{and} \mathrm{Z}$ is,

Which of the following are correct about $\mathrm{P} \text{and} \mathrm{Q}$?

When $\mathrm{p}-$nitrobenzenesulphonic acid and picric acid are treated with ${\mathrm{NaHCO}}_3$, the gases released respectively are

Which of the following will evolve ${\mathrm{CO}}_2$ on reaction with ${\mathrm{NaHCO}}_3$ ?
$\mathrm{I}$ Salicylic acid, $\mathrm{II}$Benzoic acid,$\mathrm{III}$ Ascorbic acid,$\mathrm{IV}$ Phenol

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : Phenols give $\mathrm{o}-$ and $\mathrm{p}-$nitrophenol on nitration with conc. ${\mathrm{HNO}}_3$ and ${\mathrm{H}}_2{\mathrm{SO}}_4$ mixture.
Reason : $—\mathrm{OH}$ group in phenol is $\mathrm{o}–, \mathrm{p}–$ directing.

Assertion : Phenol is more reactive than benzene towards electrophilic substitution reaction.
Reason : In the case of phenol, the intermediate arenium ion is more stabilized by resonance.

Assertion: Phenol is more acidic than ethanol.
Reason: Phenoxide ion is resonance stabilized.

When phenol is treated with bromine water, the white precipitate formed is $\_\_\_$

The major product of the following reaction sequence is:

Acetoxy benzoic acid is commonly known as

Why is the ionization constant of phenol higher than that of ethanol?

Phenol on sulphonation at ${100}^{\circ }\mathrm{C}$ gives

Phenol is more acidic than that of ethanol because: