Question # 1

A peptide having molecular mass upto 10,000 is called a

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Vitamin

Protein

Polypeptide

Dipetide

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It decolourises aqueous bromine rapidly

It is insoluble in water

It reduces Fehling's reagent

Two molecules react with each other in the presence of a strong acid

When propanamide reacts with Br₂and NaOH then which of the following compounds is formed?

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Ethyl alcohol

Propyl alcohol

Propyl amine

Ethylamine

Caroxyl group has functional in it.

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one

two

three

four

Glutamic acid, aspartic acid are ______ amino acid

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Acidic

Basic

Neutral

None of these

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Acidic amino acid

Basic amino acid

Neutral amino acid

None of these

Carboxylic acids functional group is:

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----COOH

-----COH

----CO---

----OH

Hydrolysis of alkyl nitriles gives:

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alkane

alkyl halide

alkyl nitride

carboxylic acids

The solution of which acid is used for seosoning of food ?

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Formic acid

Acetic acid

Benzoic acid

Butanoic acid

A carboxylic acid with one caboxyl group:

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Monocarboxylic acid

Dicarboxylic acid

Tricarboxylic acid

Polycarboxylic acid

A carboxylic acid containing Ar group in it is called:

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Aromatic carboxylic acid

Allphatic carboxylic acid

Dicarboxylic acid

Carboxylic acid

Acetamides are formed by the reaction of carboxylic acids with

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Acids

Bases

Salts

NH₃

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Step 1 Step 2

HCI HCN

HcN,NaCH H₂SO₄

H₂SO₄ K₂Cr₂O₇/H₂SO₄

KCN HCI

Which formula represents the organic compound formed by the reaction of propanoic acid with methanol in the presence of concentrated sulphuric acid as a catalyst

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CH₃CH₂COCH₃

CH₃CH₂CO₂CH₃

CH₃CO₂CH₂CH₃

CH₃CH₂CH₂CO₂CH₃

Carboxylic acids on complete reduction in the presence of HI and red Phosphours gives:

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esters

alcohols

alkanes

aldehydes

Aliphatic carboxylic acids have carboxyl group attached to:

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Alkyl group

Aryl group

Phenyl group

Benzyl lgroup

Glacial acetic acid freezes to ice like solid at (°C)

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07

17

27

37

Which of the following is present in the stings of bees and wasps

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Formic acid

Citric acid

Carbolic acid

Formalin

Formic Acid is obtained from Red out by:

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Distillation

Crystallization

Filtration

sublimation

Those amino acids which contain two carboxylic groups are called ______ amino acids

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Acidic

Basic

Neutral

None of these

Rearrangement of an oxime to an amide in the presence of strong acid is called

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Curtius rearrangement

Fries rearrangement

Beckman rearrangement

Aldol condensation

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Ethanol in the presence of concentrated sulphuric acid

Potassium hydroxide

Sodium

Sodium carbonate

Boiling point of acetic acid is°C:

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116

117

118

119

Monocarboxylic acids exist as dimer because of

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Dipole-dipole attraction

Hydrogen bonding

Van der Waals forces

Conhesive forces

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Elimination Esterification

Elimination Isomerisation

Oxidation Exterification

Oxidation Oxidation

Carboxylic acid can generally be prepared by various methods. Which of the following methods is not suitable for making carboxylic acids

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By the oxidation of primary alcohols

By the hydrolysis of nitriles

By the carbonation of Grignard, reagent

By the hydrolysis of p-amines

Glacial acetic acid freezes to ice like solid it.

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07

17

27

37

The M.P. of carboxylic acids containing even number of carbon atoms is ______ than the next

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Higher

Low

Equal

None

From the following values of dissociation constants of four acids which value represents the strongest acid?

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2 x 10^-2

0.02 x 10^-1

3 x 10^-4

2 x 10^-4

Pro stand for

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Valine

Alamine

Glycine

Proline

Lactic acid on oxidation by alkaline potassium permanganate gives

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Tartaric acid

Pyruvic acid

Cinnamic acid

Propionic acid

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ECAT Chemistry Chapter 24 Carboxylic Acid Online Test MCQs With Answers

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