ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

Acyl halide is formed by reacting PCl₅with

• Alcohol A
• Ester B
• Amide C
• Both carboxylic acids as well as esters D

Common names of carboxylic acids are given by then:

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

Amylacetate flavour is present in:

• Banana A
• Apple B
• Jasmine C
• Orange D

Vinegar made form cane sugar, now a days synthetically contains

• Citric acid A
• Lactic acid B
• Acetic acid C
• Palmitic acid D

The acid showing salt like character in aqueous solution is

• Acetic acid A
• Benzoic acid B
• Formic acid C
• α - Aminoacetic acid D

Fatty acids are:

• Allphatic monocarboxylic acids A
• Dicaroxylic acids B
• Tricarboxylic acids C
• Tetracarboxylic acids D
• Poly carboxylic acids E

Vinegar is dilute solution of:

• Acitic acid A
• Formic acid B
• Butyric acid C
• Propionic 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

Acetic Acid is obtained from:

• Red out A
• Vinegar B
• Butter C
• Milk D

Which of the following is not a fatty acid?

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

Glacial Acetic acid is

• Pure acetic acid at 100°C A
• Acetic acid mixed with methanol B
• Pure acetic acid at 0°C C
• Pure acetic acid above 16.6°C D

Aliphatic carboxylic acids have carboxyl group attached to:

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

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

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

• Elimination Esterification A
• Elimination Isomerisation B
• Oxidation Exterification C
• Oxidation Oxidation D

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

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

Rosenmund's reduction of an acyl chloride gives

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

Amino acids contain functional groups in it:

• --CO-- A
• --OH B
• ---NH₂ C
• All of these D

A compound containing carboxyl group in them are called:

• Ketone A
• Ether B
• Carboxylic acids C
• Polycarboxylic acid D

Which compound is both chiral and acidic

• 
  A
• 
  B
• 
  C
• 
  D

The acid present in the stings of bees and wasps in

• Acetic acid A
• Formic acid B
• Formalin C
• Formaldehyde D

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

• 2 moles of ethyl alcohol A
• Formic anhydride B
• Acetic anhydride C
• 2 moles of methyl cyanide D

The reaction of acetaldehyde with HCN followed by hydrolysis gives a product which exhibits

• Metamerism A
• Tautomerism B
• Enatiomerism C
• Geometrical isomerism D

Carboxylic acids are more acidic than pehnol and alcohol because of

• Intermolecular hydrogen bonding A
• Formation of dimmers B
• Highly acidic hydrogen C
• Resonance stabilization of their conjugate base D

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

• Formic acid A
• Citric acid B
• Carbolic acid C
• Formalin D

Acetamide is prepared by:

• Heating ammonium acetate A
• Heating methyl cyanide B
• Heating ethyl acetate C
• The hydrolysis of methyl cyanide D

Which of the following is the strongest acid?

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

Heating a mixture of sodium benzoate and soda lime gives

• Methane A
• Benzene B
• Sodium bezoate C
• Calcium benzoate 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

Etherification is catalyzed by

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

Which acid is used in the manufacture of synthetic fibre?

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