Question # 1

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

Choose an answer

Acetaldehyde

Acetone

Butane

3-pentanone

Choose an answer

2-chlorobutanal

alfa-chlorobutanal

2-chlorobutyraldehyde

alfa- chlorobutyraldehyde

Formalin is an aqueous solution of

Choose an answer

Furfural

Fluorescein

Formaldehyde

Formic acid

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 yields Bakelite?

Choose an answer

Urea with HCHO

Tetramethyl glycol with Hezamethylene diisocyanate

Phenol and HCHO

Ethylene glycol and Dimethylterephthalate

Which reagent could be used to distinguish between CH₃CH(OH)CH₂CHO and CH₃COCH₂CH₂OH

Choose an answer

Acidified potassium dichromate

Dilute sulphuric acid

2,4-dinitrophenylydrazine

Fehling's reagent

Aldehyde and small methyl ketones form crystalline ______ ppts with saturated sodium bisulphate solution

Choose an answer

White

Red

Yellow

None of these

What is formed when propanone is refluxed with an anhydrous solution of NaBH₄

Choose an answer

Propanal

Propan-1-ol

Propan-2-ol

Propane

Which of these reactions is shown by buranone, CH₃COCH₂CH₃

Choose an answer

On warming with acidified potassium dichromative (IV) the solution turns green

On heating with Fehling's reagent a red precipitate is formed

With 2,4-dinitrophenlhydrazine reagent an orange precipitate is formed

With hydrogen cyanide an aldehyde is formed

Aldehydes can be distinguished from ketones by

Choose an answer

2,4-DNPH test

NaHSO₃test

N₂H₄test

Tollen's test

A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solution and on oxidation produces a monocarboxylic acid B.A can also be obtained by the action of Cl₂on Ethanol. A is

Choose an answer

Chloral hydrate

CHCl₃

CH₃Cl

Chloroacetic acid

Which of the following react with NaOH to produce an acid and an alcohol?

Choose an answer

NCHO

CH₃COOH

CH₃CH₂COOH

C₆H₅COOH

A compound R has all of the following properties. It is neutral; It gives an orange precipitate with 2,4-dinitrophenythydrazine; it evolves hydrogen chloride when treated with PCI₅in the cold What could R be

Choose an answer

Hydroxyl amine is a derivative of::

Choose an answer

Alcohol

Aldehyde

Ammonia

Ketone

Condensation of aldeydes withα-hydrogen gives:

Choose an answer

Acetal

Ketal

Aldol

Cannizzaro product

Which reaction is of condensation or addition elimination reaction?

Choose an answer

Ketol

Aldol

Cannizzaro

All of these

The color of ppts formed by Fehling's test is

Choose an answer

Brick red

Red

Yellow

Orange

Aldelydes are the oxidation product of

Choose an answer

P-alcohols

s-alcohols

ter-alcohols

carboxylic acids

Benzophenone can be converted into benzene using

Choose an answer

Fused alkali

Anhydrous AlCl₃

Sodium amalgam in water

Acidfied dichromate

Aldehydes is distinguished from ketones by using

Choose an answer

Tollen's reagent

Benedict reagent

Fehling solution

All of the above

Cyanohydrin of which of the following forms lactic acid

Choose an answer

HCHO

CH₃COCH₃

CH₃CHO

CH₃CH₂CH₂CHO

The carbon of a carbonyl group is:

Choose an answer

sp hybridized

sp²hybridized

sp³Hybidized

None of these

At room temperature formaldehyde is

Choose an answer

Gas

Liquid

Solid

None of the above

In aldol condensation reaction, a double bond is formed between ______ and ______ carbon atoms

Choose an answer

αandβ

αandα

αand Y

None of these

Cannizzaro reaction is not given by

Choose an answer

Trimethyl acetaldehyde

Acetaldehyde

Benzaldehyde

Formaldehyde

Wacker method involves the conversion of alkene using PdCl₂into corresponding

Choose an answer

Alcohol

Ketone

Aldehyde

Ether

The carbon atom of a carbonyl group is

Choose an answer

Sp hybridized

Sp²hybridized

Sp³hybridized

None of these

Which one of the following is a product of the reaction between C₆H₅CH₂OH and CH₃COCI

Choose an answer

C₆H₅OCOCH₃

C₆H₅CH₂CI

C₆H₅CH₂OCOCH₃

C₆H₅CH₂COCI

Ketons are prepared by the oxidation of

Choose an answer

Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

Propyne on hydrolysis in presence of H₂SO₄and HgSO₄gives

Choose an answer

Acetaldehyde

Acetone

Formaldehyde

None

Aniline reacts with which of these to form Schiff base?

Choose an answer

Acetic acid

Bezaldehyde

Acetone

NH₃

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

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