Chemical Properties of Alcohols

IMPORTANT

Chemical Properties of Alcohols: Overview

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

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

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

The final product (IV) in the sequence of reactions is :

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HARD
IMPORTANT

Which amongst the following will be most readily dehydrated under acidic conditions?

HARD
IMPORTANT

For the given reaction

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The, total number of possible products formed by tertiary carbocation of A is_______.

HARD
IMPORTANT

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In the above reaction, left hand side and right hand side rings are named as A and B respectively. They undergo ring expansion. The correct statement for this process is:

HARD
IMPORTANT

In the reaction given below

Question Image 'B' is:

MEDIUM
IMPORTANT

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Product X formed in the above reaction is:

MEDIUM
IMPORTANT

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The number of hyperconjugation structures involved to stabilize carbocation formed in the above reaction is __________.

MEDIUM
IMPORTANT

In the following reaction, ‘B’ is

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MEDIUM
IMPORTANT

The correct order of acidic strenght of the given compounds is:

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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

When ethyl alcohol is heated with red phosphorus and HI, then which of the following is formed.

EASY
IMPORTANT

What happens when ethanol reacts with PBr3?