Acidity of Alcohols and Phenols

IMPORTANT

Acidity of Alcohols and Phenols: Overview

This Topic covers sub-topics such as Reaction of Phenol with NaOH, Acidic Character of Alcohols, Effect of Substituents on the Acidity of Phenol, Acidic Character of Phenols and, Reaction of Alcohols with Active Metals

Important Questions on Acidity of Alcohols and Phenols

MEDIUM
IMPORTANT

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

HARD
IMPORTANT

Which of the following conversion explains the acidic nature of alcohols?

HARD
IMPORTANT

Which of the following conversion explains the acidic nature of alcohols?

HARD
IMPORTANT

Explain the following:

o-Nitrophenol is more acidic than o-Cresol.

HARD
IMPORTANT

Explain the following:

Phenol is more acidic than ethanol.

HARD
IMPORTANT

Which is stronger acid in the following pair ?

2-Nitrophenol and 2,4,6-Trinitrophenol

HARD
IMPORTANT

Which is stronger acid in the following pair?

2,4-Dinitrophenol and 3,5-Dinitrophenol

HARD
IMPORTANT

Which is stronger acid in the following pair ?

3-Chlorophenol and 2-Ethylphenol

EASY
IMPORTANT

The reagent which cannot be used to distinguish phenol from ethyl alcohol is:

EASY
IMPORTANT

Which of the following is most acidic

EASY
IMPORTANT

In CH3CH2OH which bond dissociates heterolytically

EASY
IMPORTANT

23 g of Na will react with methyl alcohol to give

EASY
IMPORTANT

In reaction of alcohols with alkali metal, acid etc. which of the following alcohol will react fastest

EASY
IMPORTANT

An organic compound A reacts with sodium metal and forms B . On heating with conc. H2SO4, A gives diethyl ether. A and B are

MEDIUM
IMPORTANT

The strongest acid among the following aromatic compounds is

EASY
IMPORTANT

The acidity of the compounds RCOOH, H2CO3, C6H5OH, ROH decreases in the order

MEDIUM
IMPORTANT

Which of the following is not soluble in NaHCO3 solution?

MEDIUM
IMPORTANT

Among the following, which is least acidic?

HARD
IMPORTANT

An organic compound 'X ' with molecular formula, C7H8O is insoluble in aqueous NaHCO3 but dissolves in NaOH. When treated with bromine water 'X ' rapidly gives 'Y ' C7H5OBr3.

The compounds 'X ' and 'Y ' respectively, are

MEDIUM
IMPORTANT

Among the following, which is the least acidic?