ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

Toluene can be oxidized to benzoic acid by

• KMnO₄(alk) A
• K₂Cr₂O₇(acidic) B
• Both C
• None D

Partial reduction of acetic acid happens with

• NH₃ A
• LiAIH₄ B
• P + HI C
• PCI₅ D

General formula of aliphatic carboxylic acids:

• R---OH A
• R----COH B
• R----CO---R C
• RCOOH D

Acetic acid is manufactured by the fermentation of

• Ethanol A
• Methanol B
• Ethanal C
• Methanal D

When a carboxylic acid reacts with a metal ______ gas is evolved

• H₂ A
• CO₂ B
• CI₂ C
• None of these D

The OH group present in acids may be replaced by CI atom on treatment with

• PCI₅ A
• SOCI₂ B
• Both of them C
• None of the above D

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

• Hoffmann's bromamide reaction A
• Hoffmann's methylation B
• Gabriel phthalimide reaction C
• H.V.Z reaction D

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

• Higher A
• Low B
• Equal C
• None D

Acetic acid is manufactured by:

• Distillation A
• Fermentation B
• Ozonolysis C
• Esterification D

• di(4-bormophenyl) method A
• Methanol B
• Propan-1-ol C
• Propan-2-ol D

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

• Formic acid A
• Acetic acid B
• Benzoin acid C
• Butanoic acid D

What will happen if LiAIH₄is added to an ester?

• Two units of alcohol are obtained A
• One unit of alcohol and one unit of acid is obtained B
• Two units of acids are obtained C
• None of these D

A carboxylic acid containing Ar group in it is called:

• Aromatic carboxylic acid A
• Allphatic carboxylic acid B
• Dicarboxylic acid C
• Carboxylic acid D

Pro stand for

• Valine A
• Alamine B
• Glycine C
• Proline D

Aspirin is

• Acetyl salicylic acid A
• Phenyl salicylic acid B
• Salicylic acid C
• Benzoic acid D

• Acidic amino acid A
• Basic amino acid B
• Neutral amino acid C
• None of these D

Reaction of acids with alcohols is also known as

• Esterification A
• Saponification B
• Alkalization C
• None D

The organic compounds containing Ph-OH group are called:

• Phenol A
• aldehyde B
• Keton C
• Carboxylic acids D

Rosenmund's reduction of an acyl chloride gives

• An aldehydes A
• An alcohol B
• An ester C
• A hydrocarbon D

Acidic hydrolysis of acetamide gives

• Acetaldehyde A
• Acetic acid B
• Methyl amine C
• Formic acid D

CH₃CH₂COOH is also named as:

• Propionic acid A
• Propanoic acid B
• Acetic Acid C
• Both (a) and (b) D

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

• Ethers A
• Esters B
• Anhydride C
• Amides D

Which of the following is the strongest acid?

• CF₃COOH A
• CBr₃COOH B
• CH₃COOH C
• CCl₃COOH D

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

• Strecker synthesis A
• Cory house synthesis B
• Williamson;s synthesis C
• None of these D

Which of the following does give violet colour with neutral ferric chloride?

• Acetic acid A
• Salicaylic acid B
• Formine acid C
• Benzoic acid D

Hydrolysis of alkyl nitriles is done to get carboxylic acids in the presence of

• Mineral acids A
• Mineral alkalies B
• Organics acids C
• Minerals acids & alkalies D

Lactic acid on oxidation by alkaline potassium permanganate gives

• Tartaric acid A
• Pyruvic acid B
• Cinnamic acid C
• Propionic acid D

Which of the following reagents is used to distinguish between methanoic acid and ethanoic acid?

• Amm. silver nitrate solution A
• Neutral ferric chloride B
• Sodium hydroxide solution C
• Sodium carbonate solution D

When acetamide reacts with Br₂and caustic soda, then we get

• Acetic acid A
• Bromoacetic acid B
• Methyl amine C
• Ethylamine D

Tryosine was isolated from

• Butter A
• Cheese B
• Oils C
• Fats D