ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

• 
  A
• 
  B
• 
  C
• 
  D

Boiling point of acetic acid is°C:

• 116 A
• 117 B
• 118 C
• 119 D

Which of the following is not fatty acid?

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

Aromatic carboxylic acids have carboxyl group attached to group :

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

A carboxylic acid contains:

• A hydroxyl group A
• A carboxyl group B
• A hydroxyle & carboxyl group C
• A carboxyl &aldehyde group D

A compound X has all of the following properties: It is a liquid at room temperature and atmospheric pressure; It does not mix completely with water; It does not decolorise acidified potassium manganate

What could X be

• Ethane A
• Ethanoic acid B
• Ethanol C
• Ethyl ethanoate D

Acetic acid is miscible in:

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

The acids obtained by the hydrolysis of fats and oils are called

• Active compound A
• Fatty acids B
• Functional group C
• None D

Lower carboxylic acids are soluble in water due to

• Low molecular weight A
• Hydrogen bonding B
• Dissociation into ions C
• Easy hydrolysis D

Hydrolysis of an ester gives a carboxylic acid which on Kolbe's electrolysis yields ethane. the easter is

• Ethyl methonoate A
• Methyl ethanoate B
• Propylamine C
• Ethylamine D

Heating a mixture of sodium benzoate and soda lime gives

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

A compound containing carboxyl group in them are called:

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

• Alkyl A
• Alkyl nitrile B
• Cyanogens C
• Amine D

Which are used as essences(flowers)?

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

Rosenmund's reduction of an acyl chloride gives

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

Acetic acid is manufactured by:

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

Boiling point of acetic acid is ^oC

• 116 A
• 117 B
• 118 C
• 119 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

Sulphonation of benzoic acid produces mainly

• o-Sulphobenzoic acid A
• m-sulohobenzoic acid B
• p-Sulphobenzoic acid C
• o-and p-Sulphobenzoic acid D

When acetic acid and ethanol react together an ester is formed which is called

• Ethyl ester A
• Ethanoic acid B
• Ethanoic acid C
• Ethyl acetate D

Essential amino acids are those amino acids which

• Body can not synthesize A
• Body can synthesize B
• α-amino acids C
• β-amino acids D

• 
  A
• 
  B
• 
  C
• 
  D

The organic compounds containing Ph-OH group are called:

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

Acetamide and NaOBr/OH^-produce

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

Between CH₃COOH and HCOOH, HCOOH will be

• Less acidic A
• Equally acidic B
• More acidic C
• None D

An organic acdi having molecular formula C₂H₄O₂is

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

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

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

In the presence of Aluminium ethoxide, aldehydes get converted into esters. The reaction is known as

• Schmidt reaction A
• Aldol condensation B
• Beckmann's rearrangement reaction C
• Tischenko reaction D

Lactic acid on heating with dil. H₂SO₄gives

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