Question # 1

Aldol condensation is actually

Choose an answer

Electrophilic addition of carbonation

Electrophilic addition of carbonium ion

Nucleophilic addition of carbonation

Nuclephilic addition of carbonium ion

Carboxyl compounds have functional group:

Choose an answer

R-C-X

R-CH=O

RCOR

All

In which reaction, aromatic aldehyde is treated with acid anhydride in the presence of corresponding salt of the acid to give unsaturated aromatic acid?

Choose an answer

Friedel-Crafts reaction

Perkin's reaction

Wurtz reaction

None of these

Which of the following compounds does not react with NaHSO₃?

Choose an answer

C₆H₅CHO

Acetophenone

Acetone

Acetaldehyde

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

Choose an answer

Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

Which of the following compounds will react with Tollen's reagent

Choose an answer

Condensation of aldeydes withα-hydrogen gives:

Choose an answer

Acetal

Ketal

Aldol

Cannizzaro product

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

Choose an answer

White ppts

Red ppts

Yellow ppts

Silver mirror

Aldehydes are reduced to :

Choose an answer

Pri-alcohol

Sec-alcohol

Ter-alcohol

All of these

Choose an answer

Q and R Q and R

R only Q and R

Q and R R only

Q only R only

From which of the following tertiary butyl alcohol is obtained by the action of methyl magnesium iodide?

Choose an answer

HCHO

CH₃CHO

CH₃COCH₃

CO₂

The colour of ppts formed by Fehling's test is

Choose an answer

Brick red

Red

Yellow

Orange

Wacker method involves the conversion of alkene using PdCl₂into corresponding

Choose an answer

Alcohol

Ketone

Aldehyde

Ether

Formula of acetone is:

Choose an answer

HCHO

CH₃CHO

CH₃OCH₃

CH₃OC₂H₅

Which of the following compounds will react with reagent ?

Choose an answer

CH₃ CO H

CH₃ CO CH₃

CH_{3 COOH}

CH₃CO CH₂CH₃

Acetone is oxidized with

Choose an answer

Tollen's reagent

Fehling solution

Acidic dichromate solution

Benedicts solution

Which compound on reaction with hydrogen cyanide produces a compound with a chiral centre

Choose an answer

Ch₃CHO

CH₃CH₂COCH₂CH₃

CH₃CO₂CH₃

HCHO

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

Choose an answer

Acetaldehyde

Acetone

Butane

3-pentanone

Which isomer of C₅H₁₁OH gives, one dehydration, the greastest number of different alkenes

Choose an answer

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

Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

Which one of the following statement is wrong regarding differences between aldehydes and ketones

Choose an answer

Aldehydes undergo reduction to form primary alcohols while ketones undergo reduction to form secondary alcohols

Aldehydes undergo oxidation to form acids having less number of carbon atoms while ketones undergo oxidation to form acids having same number of carbon atoms

Aldehydes give positive silver mirror test while ketones give negative -mirror test

Aldehydes can undergo polymerization while ketones cannot undergo polymerizarion

Aniline reacts with which of these to form Schiff base?

Choose an answer

Acetic acid

Bezaldehyde

Acetone

NH₃

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

Choose an answer

C₆H₅OCOCH₃

C₆H₅CH₂CI

C₆H₅CH₂OCOCH₃

C₆H₅CH₂COCI

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

Hydroxyl amine is a derivative of::

Choose an answer

Alcohol

Aldehyde

Ammonia

Ketone

Tollen's reagent is

Choose an answer

Ammonical cuprous chloride

Ammonical cuprous oxide

Ammonical silver bromide

Ammonical silver nitrate

Reaction of Grignard's reagent with formaldehyde gives:

Choose an answer

pri-alcohol

sec-alcohol

ter-alcohol

carboxylic

The color of ppts formed by Benedirct's test is

Choose an answer

Brick red

Wine red

Yellow

Orange

Which of the following gives iodoform on heating with a solution of I₂containing Na₂CO₃?

Choose an answer

Ethyl alcohol

Acetone

Ethyl alcohol as well as acetone

Methyl alcohol

Ketons are prepared by the oxidation of

Choose an answer

Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

Which is mild oxidizing agent ?

Choose an answer

Tollen's reagent

KMnO₄ / H₂SO₄

K₂Cr₂O₇ / H₂SO₄

HNO₃

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