Question # 1

Formaldehyde is used to make

Choose an answer

Plastics

Medicine

Antiseptic

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

In carboxyl group the bond between C and oxygen is:

Choose an answer

Sigma bond

Single bond

Double Bond

Triple bond

The color of ppts formed by Fehling's test is

Choose an answer

Brick red

Red

Yellow

Orange

Which is used for the reduction of aldehydes and ketones

Choose an answer

NaBH₄

Pt/Pd

Ni

All of these

Cannizzzaro's reaction is not given by:

Choose an answer

Formaldehyde

Acetaldehyde

Benzaldehyde

Trimethyl

Which of the following organic compounds exhibits positive Fehling test as well as iodoform test?

Choose an answer

Methanal

Ethanol

Propanone

Ethanal

Ketones are reduced to

Choose an answer

Primary alcohol

Secondary alcohol

Tertiary alcohol

All of these

Reaction of Grignard's reagent with ketones gives: Reaction of Grignard's reagent with formaldehyde gives:

Choose an answer

Pri-alcohol

Sec-Alcohol

Ter-alcohol

Carboxylic

Reaction of Grignard's reagent eith aldehyds other formaldehyde gives: Reaction of Grignard's reagent with formaldehyde gives:

Choose an answer

Pri-alcohol

Sec-alcohol

Ter-alcohol

Carboxylic

Aromatic aldehydes undergo disproportionation in presence of sodium or potassium hydroxide to give corresponding alcohol and acid. The reaction is known as

Choose an answer

Wurtz reaction

Cannizzaro reaction

Friedel Craft reaction

Claisen reaction

Which of the following is hypnotic?

Choose an answer

Acetaldehyde

Metaldehyde

Paraldehyde

None

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

The addition of HCN to carbonyl compounds is an example of

Choose an answer

Nucleopihlic substituion

Electrophilic addition

Nueleophilic addition

Electrophilic substitution

C₂H₅CHO and (CH₃)₂CO can be distunguished by testing with

Choose an answer

Phenyl hydrazine

Hydroxylamine

Fehling solution

Sodium bisulphate

For which one of the following pairs of compounds can the members be distinguished by means of Tollen's test

Choose an answer

HCHO and CH₃CHO

CH₃CHO and CH₃COCH

CH₃COCH₃and C₆H₅COCH₃

CH₃COOH and CH₃COOCH₃

Reduction of aldehydes with HI and P gives

Choose an answer

Primary alcohols

Secondary alcohols

Alkanes

Tertiary alcohols

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

Choose an answer

Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

Hydrogenation of bezoyl chloride in presence of Pd on BaSO₄gives

Choose an answer

Benzyl alcohol

Benzaldehyde

Benzoic acid

Phenol

Ethanal may be converted into a three-carbon acid in a two-step process.

Which compound is the intermediate

Choose an answer

CH₃CO₂H

CH₃CN

CH₃CH₂CN

CH₃CH(OH)CN

The IUPAC name fo CH₃COCH (CH₃)₂is

Choose an answer

4-Methylisopropyl ketone

3-Methyl-2 butanone

Isopropylmethyl ketone

2 - Methyl- 2 butanone

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