ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

General formula of aromatic carboxyl acids

• R---------------OH A
• RCOOH B
• RCOR C
• ARCOOH D

Carboxylic acids are reduced to in presence of NaAIH₄

• Esters A
• Acetyl chloride B
• alcohol C
• Aldehydes D

Which compound is both chiral and acidic

• 
  A
• 
  B
• 
  C
• 
  D

Acetamide is

• Highly acidic A
• Highly basic B
• Neutral C
• amphoteric D

The Zwitter ion is also called

• International salt A
• Internal salt B
• No salt C
• None of these D

Primary alcohols and aldehydes are oxidized to corresponding:

• alkanes A
• alkenes B
• Alkynes C
• Carboxylic Acid D

Common names of carboxylic acids are given by then:

• Source A
• Person discovered B
• place C
• habit D

Which of the following compounds on boiling with KMnO₄(alk) and subsequent acidification will not give benzoic acid?

• Benzyl alcohol A
• Acetophenone B
• Anisole C
• Toluene D

Acetic acid is obtained when

• Methyl alcohol is oxidized with potassium permanganate A
• Calcium acetate is distilled in the presence of calcium formate B
• Acetaldehyde is oxidized with potassium dichromate and sulphuric acid C
• Glycerol is heated with sulphuric acid D

Etherification is catalyzed by

• Acids A
• Gases B
• Salts C
• None of the these 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

Carboxyl group has functional group in it:

• One A
• Two B
• Three C
• Four D

Carboxylic acids on complete reduction in the presence of Hi and red phosphorus gives:

• Esters A
• Alcohols B
• Alkanes C
• Aldehydes D

Boiling point of acetic acid is°C:

• 116 A
• 117 B
• 118 C
• 119 D

Palmitic acid & steanic acid ae obtained from process of fats & oils:

• Reduction A
• Neutralization B
• oxidation C
• hydrolysis D

Carboxylic acids having carboxyl group one is called:

• Mono carboxylic acid A
• Di-carboboxylic acid B
• Tri carboxilic acid C
• Tetra carboxylic acid D

Which acid is used in the manufacture of synthetic fibre?

• Formic acid A
• Oxalic acid B
• Carbonic acid C
• Acetic acid D

Which reagent is used to reduce a carboxylic group to an alcohol

• H₂/Ni A
• H₂/Pt B
• NaBH₄ C
• LiAIH₄ D

Aliphatic carboxylic acids have carboxyl group attached to:

• Alkyl group A
• Aryl group B
• Phenyl group C
• Benzyl lgroup D

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

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

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

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

• Dipeptide A
• Tripeptide B
• Polypeptide C
• None of these D

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

• Curtius rearrangement A
• Fries rearrangement B
• Beckman rearrangement C
• Aldol condensation D

Amiino acids are building blocks of:

• Protein A
• Carbohydrates B
• Lipids C
• Fats D

Saponification of ethyl benzoate with caustic soda

• Benzyl alcohol,ethanoic acid A
• Sodium benzoate, ethanol B
• Benzoic acid, sodium ethoxide C
• Phenol, ethanoic acid D

Which of the following is not a fatty acid

• Propanoic acid A
• Acetic acid B
• Phthalic acid C
• Butanoic acid D

Acetamides are formed by the reaction of carboxylic acids with

• Acids A
• Bases B
• Salts C
• NH₃ D

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

• 07 A
• 17 B
• 27 C
• 37 D

Carboxylic acids react with acids releasing gas from it:

• H2O as steam A
• CO B
• CO2 C
• O2 D

Hydrolytic reaction of fats by causic soda is known as

• Acetylation A
• Carboxylation B
• Esterification C
• Saponification D