Chemical Reactions of Alcohols

IMPORTANT

Chemical Reactions of Alcohols: Overview

This Topic covers sub-topics such as Dehydration of Alcohols, Dehydrogenation of Alcohols, Chemical Properties of Alcohols, Mechanism of Dehydration of Alcohols, Acidic Character of Alcohols and, Alcohols as Nucleophiles

Important Questions on Chemical Reactions of Alcohols

MEDIUM
IMPORTANT

An organic compound A has the molecular formula C8H16O2. It gets hydrolysed with dilute sulphuric acid and gives a carboxylic acid B and an alcohol C. Oxidation of C with chromic acid also produced B. C on dehydration reaction gives D. Identify A, B, C and D?

HARD
IMPORTANT

Aldol reaction is used as one of the step for which of the following conversions :

(i) Ethanol to 3-hydroxybutanal

(ii) Benzaldehyde to Benzophenone

MEDIUM
IMPORTANT

The following pairs of compounds can be distinguished by which of the following test:

(i) Acetophenone and Benzophenone

(ii) Ethanal and Propanal

MEDIUM
IMPORTANT

Acid catalyzed hydration of alkenes except ethene leads to the formation of

HARD
IMPORTANT

Among the following the one that gives positive iodoform test depend upon reaction with   I 2 and NaOH is –

MEDIUM
IMPORTANT

The main product of the following reactions is

C6H5CH2CHOHCH(CH3)2Conc. H2SO4       ?

MEDIUM
IMPORTANT

During dehydration of alcohols to alkenes by heating with concentrated  H2SO4 the initiation step is –

MEDIUM
IMPORTANT

An aromatic compound AC8H10O gives following tests with the given reagents.

Question ImageIdentify 'A'

HARD
IMPORTANT

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

MEDIUM
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The compound that dehydrates most readily is

MEDIUM
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Which of the following compounds is oxidized to prepare methyl ethyl ketone?

MEDIUM
IMPORTANT

Which of the following compounds will mostly readily be dehydrated to give alkene under acidic condition?

MEDIUM
IMPORTANT

The reaction of phosphorus tribromide with ethanol gives ______.

EASY
IMPORTANT

Which one of the following alcohols undergoes acid-catalysed dehydration to alkenes most readily?

EASY
IMPORTANT

Formation of but-2-ene as a major product by the dehydration of butan-2-ol is according to ______.

EASY
IMPORTANT

For the reaction

C2H5OH + HX C2H5X+H2O

The order of reactivity of halogen acids is ______.

EASY
IMPORTANT

How many of the following will give H2 gas when react with sodium metal

(a) Question Image

(b) Question Image

(c) Question Image

(d) Question Image

(e) Question Image

EASY
IMPORTANT

Na reacts rapidly with:

HARD
IMPORTANT

The correct order of acidity of the alcohols is?

EASY
IMPORTANT

Which of the following compounds yields 3-Ethylpentan -3- ol by using ethyl magnesium iodide followed by acid hydrolysis?