ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh₄or LiAH₄?

• 1-Propanol A
• 2-Propanol B
• 2-Methyl2-Proponal C
• Ethanol D

Which of the following statements about acetic, anhydride is not correct

• It is immiscible with water but is hydrolysed to give acetic acid A
• It is prepared by the action of actyl chloride on the sodium salt of acetic acid B
• it reacts with ammonia to give acetamide C
• it is a strong 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

The human body can synthesize ______ amino acids

• 1 A
• 10 B
• 20 C
• 19 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

The organic compounds containing Ph--OH group are called:

• Phenol A
• Aldehyde B
• Ketones C
• Carboxylic acids D

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

• Vitamin A
• Protein B
• Polypeptide C
• Dipetide D

Carboxylic acids functional group is:

• ----COOH A
• ----CO--- B
• ----OH C
• -----COH D

CH₃CH₂COOH is also named as:

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

When acetamide reacts with Br₂and caustic soda, then we get

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

Acetamide and NaOBr/OH^-produce

• Ethanamine A
• Methanamide B
• CH₃CN C
• NH₃ D

The acid showing salt like character in aqueous solution is

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

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

• Ethyl amine A
• Ethyl alcohol B
• Acetic acid C
• Acetaldehyde D

Acetic acid is manufactured by:

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

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

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

Which of the following is not fatty acid?

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

The human body can synthesize ______ amino acids

• 1 A
• 10 B
• 20 C
• 19 D

The acid present in vinegar is

• CH₃COOH A
• HCI B
• H₂SO₄ C
• HCOOH D

Lactic acid on heating with dil. H₂SO₄gives

• Acetic acid A
• Propionic acid B
• Acrylic acid C
• Formic acid D

Acetic acid is miscible in:

• Water A
• Alcohol B
• Either C
• All of these D

Carboxyl group has functional group in it:

• One A
• Two B
• Three C
• Four D

HCOOH reacts with conc. H₂SO₄to produce

• CO A
• CO₂ B
• NO C
• NO₂ D

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

• esters A
• alcohols B
• alkanes C
• aldehydes D

Acetamides are formed by the reaction of carboxylic acids with

• Acids A
• Bases B
• Salts C
• NH₃ D

Which of the following is not a fatty acid

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

Lysine is ______ amino acid

• Acidic A
• Basic B
• Natural C
• None of these D

An organic acdi having molecular formula C₂H₄O₂is

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

Caroxyl group has functional in it.

• one A
• two B
• three C
• four D

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

The general formula of amino acids is

• 
  A
• 
  B
• 
  C
• 
  D