Question # 1

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

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Elimination Esterification

Elimination Isomerisation

Oxidation Exterification

Oxidation Oxidation

Acetamides are formed by the reaction of carboxylic acids with

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Acids

Bases

Salts

NH₃

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

Toluene can be oxidized to benzoic acid by

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KMnO₄(alk)

K₂Cr₂O₇(acidic)

Both

None

Two moles of acetic acid are heated with P₂O₅the product formed is

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2 moles of ethyl alcohol

Formic anhydride

Acetic anhydride

2 moles of methyl cyanide

Which of the following derivative can not be prepared directly from acetic acid

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Acetamide

Acetyl chloride

Acetic anhydride

Ethyl acetate

Esters have peculiar smell, which of the following is used as an essence of orange

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Isoamyl acetate

Iosamyl valerate

Octyl acetate

Methyl butyrate

Hydrolytic reaction of fats by causic soda is known as

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Acetylation

Carboxylation

Esterification

Saponification

Lactic acid on oxidation by alkaline potassium permanganate gives

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Tartaric acid

Pyruvic acid

Cinnamic acid

Propionic acid

Optical activity is possible in

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Oxalic acid

Acetic acid

Tartaric acid

Formic acid

A carboxylic acid with one caboxyl group:

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Monocarboxylic acid

Dicarboxylic acid

Tricarboxylic acid

Polycarboxylic acid

A compound containing carboxyl group in them are called:

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Ketone

Ether

Carboxylic acids

Polycarboxylic acid

Acetamide and NaOBr/OH^-produce

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Ethanamine

Methanamide

CH₃CN

NH₃

When acetamide is hydrolysed by boiling with acid the product obtained is

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Ethyl amine

Ethyl alcohol

Acetic acid

Acetaldehyde

When hydrogen cyanide is added to an Aldehyde in the presence of ammonia it is called

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Strecker synthesis

Cory house synthesis

Williamson;s synthesis

None of these

Amides on treatment with Br₂and KOH are converted into amines, the reaction is known as

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Hoffmann's bromamide reaction

Hoffmann's methylation

Gabriel phthalimide reaction

H.V.Z reaction

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Proton donar

Dehydrating agent

Catalyst

Electrophile

If a large number of amino acids (hundreds to thousands) are joined by peptide bonds, the resulting product is called

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Dipeptide

Tripeptide

Polypeptide

None of these

The general formula of amino acids is

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Weakest acid among the followings is

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Acetic acid

Phenol

Water

Acetylene

With amino acids ninhydrin solution gives

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Blue

Violet

Bluish violet

White

Acetic acid is obtained when

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Methyl alcohol is oxidized with potassium permanganate

Calcium acetate is distilled in the presence of calcium formate

Acetaldehyde is oxidized with potassium dichromate and sulphuric acid

Glycerol is heated with sulphuric acid

Acetic acid is miscible in:

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Water

Alcohol

Either

All of these

Aspirin is

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Acetyl salicylic acid

Phenyl salicylic acid

Salicylic acid

Benzoic acid

A colourless liquid, at room temperature reacts with soda lime to form sodium salt of carboxylic acid and ammonia gas. The liquids is

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Propanamide

Propanoic acid

Formamide

Methyl Ethanoate

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

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Higher

Low

Equal

None

When a carboxylic acid reacts with alcohol, it produces a new class of compounds

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Ethers

Esters

Anhydride

Amides

The acid present in the stings of bees and wasps in

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Acetic acid

Formic acid

Formalin

Formaldehyde

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

The solution of which acid is use for seasoning of food?

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Formic acid

Acetic acid

Benzoin acid

Butanoic acid

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ECAT Chemistry Chapter 24 Carboxylic Acid Online Test MCQs With Answers

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