Question # 1

Which reaction is disproportionate reaction

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Aldol Condensation

Cannizzaros's reaction

Haloform reactions

Acid Catalyzed reactions

Which substance usually undergo nucleophilic addition reactions.

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Benzenes

Aldehydes

Alkenes

All of these

Which one is symmetrical ketone

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Acetone

Methyl ethyl ketone

Methyl n propyl ketone

2- pentonone

Structure of carbonyl is

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Tetrahedral

Linear

Octahederal

Trigonal planar

Which of the following reagents will reacts with both aldehydes and ketones.

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Grignard reagent

Tollens's reagent

Fehling's reagent

Benedict 's reagent

Acetone reacts with HCN to form cyanohydrin it is an example of

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic subtitution

To product aldehyde group against alkaline oxidizing agent.

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It is reduced in the presence of catalyst

An acetal is formed

It is oxidized

It is treated with aqueous NaBH4

Acetaldehyde undergoes, aldol condensation in the presence of.

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dil HNO3

DIL NaOH

dil HCl

Conc. H2SO4

On heating aldehydes with Fehling's solution we get a precipitate whose colour is

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Pink

Black

Yellow

Brick red

when aldehydes react with Tollen's reagent.

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A ketone is produced

An alcohol is produced

Ag ions are produced

Ag ions are reduced

When benzaldehyde is converted to benzyl alcohol by reading with NaOH the reaction is known as.

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Cannizzaro reaction

Wurtz reaction

Wol;ficisthner reaction

Aldol reaction

Predict the product or reaction.

Acetaldehyde +NaOH

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An aldol

Acetic acid

Ethanol

Paraldehyde

Which of the following will have the highest boiling point.

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Methanal

Ethanal

Propanal

2-Hexanone

A snake was preserved in a solution and was placed in biology laboratory. The solution is.

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De ionized water

Fehling solution

Formalin

Chloroform

Which of the following compounds will not give Iodoform test on treatment with I₂/ NaOH

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Acetaldehyde

Acetone

Butanone

3-Pentanone

Which is most difficult to be oxidized

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CH₃CHO

CH₃COCH₃

HCHO

C₂H₅CHO

Paraldehyde is polymer of.

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HCHO

CH3CHO

CH3COCH3

CH3CH2-CH2OH

All of the followings react with Fehling solution except

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CH2CH2CHO

CH3-CH2COCH3

HCHO

CH3-CHO

Which of the following has highest boiling point

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Methanal

Ethanal

Propanal

2-hexanone

Which can produce ketone

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Sec alcohol

Calcium acetate

Propyne

All of these

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