Question # 1

Calcium acetate when dry distilled gives

Choose an answer

Formaldehyde

Acetaldehyde

Acetone

Acetic anhydride

Which of the following is halo form

Choose an answer

CHBr₃

CHCI₃

CHI₃

All of these

Clemensen's reduction of ketones is carried out in

Choose an answer

H₂with Pd catalyst

Glycol with KOH

LiAIH₄in water

Zn-Hg with conc. HCl

Which reaction is of condensation or addition elimination reaction?

Choose an answer

Ketol

Aldol

Cannizzaro

All of these

The homologous series of aldehydes and ketones have general formula:

Choose an answer

C_nH_2nO

C_nH_nO

C_nH_2n-1O

C_nH_nO_n

Which of the following compounds will react with reagent ?

Choose an answer

CH₃ CO H

CH₃ CO CH₃

CH_{3 COOH}

CH₃CO CH₂CH₃

Cannizzaro reaction is not given by

Choose an answer

Trimethyl acetaldehyde

Acetaldehyde

Benzaldehyde

Formaldehyde

In 1903 Arthur Lapeworth became the first chemist to investigate a reaction mechanism. The reaction he investigated was that of hydrogen cyanide with propanone. What do we now call the mechanism of this reaction

Choose an answer

Nucleophilic substitution

Electrophilic addition

Electrophilic substitution

Nucleophilic addition

In Tolten's best, the end product is ______ formed

Choose an answer

White ppts

Red ppts

Yellow ppts

Silver mirror

Dehydration of allcohol gives:

Choose an answer

Alkane

Alkene

Aldehyde

ketone

Aldehydes give reactions :

Choose an answer

Oxidation and reduction

Base-catalysed nucleophilic

Acid catalysed nucleophilic

All of these

The carbon of a carbonyl group is:

Choose an answer

sp hybridized

sp²hybridized

sp³Hybidized

None of these

Common names of aldehydes are given by corresponding:

Choose an answer

Ketone

Alcohol

Carboxylic acid

ester

The carbon atom of a carbonyl group is

Choose an answer

Sp hybridized

Sp²hybridized

Sp³hybridized

None of these

The colour of ppts formed by Fehling's test is

Choose an answer

Brick red

Red

Yellow

Orange

Acetal is produced by reacting alcohol in the presence of dry HCl with

Choose an answer

Acetaldehyde

Ketone

Ether

Carboxylic acid

In formadaldehyde and KOH are heated then we get

Choose an answer

Acetylene

Methane

Methyl alcohol

Ethyl formate

The addition of HCN to carbonyl compounds is an example of

Choose an answer

Nucleopihlic substituion

Electrophilic addition

Nueleophilic addition

Electrophilic substitution

Aldehydes which do not haveα-hydrogen undergo

Choose an answer

Aldol combination

Cannizzaro's reaction

Substitution

Elimination

Cannizzaro's reaction in not given by

Choose an answer

Formaldehyde

Acetaldehyde

Benzaldyhyde

Trimethylacetaldehyde

Acetone reacts with HCN to form a cyanohydrin. It is an example of

Choose an answer

Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

More Classes

Other Links

ECAT Chemistry Chapter 23 Aldehydes and Ketones Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer