ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

Glacial acetic acid freezes to ice like solid it.

• 07 A
• 17 B
• 27 C
• 37 D

An artificial smell of banana is produced in many articles y using esters which of the following is that

• Amyl acetate A
• Isoamyl valerate B
• Octyl acetate C
• Methyl butyrate D

Acetic acid is also named.

• Methanoic acid A
• Ethanoic acid B
• Propanic acid C
• Butanoic acid D

Which of the following is not fatty acid?

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

Heating a mixture of sodium benzoate and soda lime gives

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

Which are used as essences (flowers)?

• Aldehydes A
• Ketones B
• Alcohols C
• Esters 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

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

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

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

• H₂ A
• CO₂ B
• CI₂ C
• None of these 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 common name of propanoic acid is

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

Rosenmund's reduction of an acyl chloride gives

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

Which is not carboxylic acid with pungent smell?

• Formic acid A
• Acetic acid B
• Ethanoic acid C
• Butyric acid D

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

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

The Zwitter ion is also called

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

Ethyl acetate reacts with CH₃MgBr to form

• Secondary alcohol A
• Tertiary alcohol B
• Primary alcohol and acid C
• Acid D

The acid present in vinegar is

• CH₃COOH A
• HCI B
• H₂SO₄ C
• HCOOH 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

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

The general formula of amino acids is

• 
  A
• 
  B
• 
  C
• 
  D

• Acidified AgNO_3(aq) A
• Fehling's solution B
• Na C
• Na₂XO_3(aq) D

Acetic acids react with PCI5 giving:

• Acetamide A
• Acetyl chloride B
• Alcohol C
• Ether D

Which of the following derivative can not be prepared directly from acetic acid

• Acetamide A
• Acetyl chloride B
• Acetic anhydride C
• Ethyl acetate D

Reaction of acids with alcohols is also known as

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

What is the structure of the ester formed from propanoic acid and ethanol

• 
  A
• 
  B
• 
  C
• 
  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

The acid present in the stings of bees and wasps in

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

Esters have peculiar smell, which of the following is used as an essence of orange

• Isoamyl acetate A
• Iosamyl valerate B
• Octyl acetate C
• Methyl butyrate D

A colourless liquid, at room temperature reacts with soda lime to form sodium salt of carboxylic acid and ammonia gas. The liquids is

• Propanamide A
• Propanoic acid B
• Formamide C
• Methyl Ethanoate D