Chemical Properties of Alcohols

IMPORTANT

Chemical Properties of Alcohols: Overview

This topic covers concepts such as Acidic Character of Alcohols, Chemical Properties of Alcohols, Alcohols as Nucleophiles, Protonated Alcohols as Electrophiles, Reaction of Alcohols with Active Metals, Reaction of Alcohols with NaOH, etc.

Important Questions on Chemical Properties 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

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

HARD
IMPORTANT

Identify A,B,C in the following reactions:

2CH3CH2OH+2Na2A+H2CH3CH2OH+HIB+H2OA+BRefluxC+NaI

What happens when C is preserved in the presence of air and light? Why is dry C used as a medium in the preperation of Grignard reagent?

EASY
IMPORTANT

Describe Fischer Esterification.

MEDIUM
IMPORTANT

Ethyl alcohol reacts with acetyl chloride to form 

MEDIUM
IMPORTANT

Methyl alcohol reacts with acetyl chloride to form 

MEDIUM
IMPORTANT

Methyl alcohol reacts with acetyl chloride to form methyl acetate as the major product.

MEDIUM
IMPORTANT

What happens when methyl alcohol reacts with acetyl chloride?

MEDIUM
IMPORTANT

What happens when ethyl alcohol reacts with acetyl chloride?

EASY
IMPORTANT

Protonation of alcohol produces

EASY
IMPORTANT

Define electrophile. Give examples.

EASY
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Ethoxide ion is a stronger base than hydroxide ion.

EASY
IMPORTANT

Why does alcohol not react with sodium hydroxide?

HARD
IMPORTANT

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

HARD
IMPORTANT

The final product obtained by the reaction between alcohol and phosphorus pentachloride is:

MEDIUM
IMPORTANT

Effervescence takes place when sodium carbonate solution is added to

MEDIUM
IMPORTANT

The compound that dehydrates most readily is

HARD
IMPORTANT

The correct order of acidity of the alcohols is?

EASY
IMPORTANT

Oxidation of 1o alcohols to aldehydes is very successful for the alcohols like