ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

Which compound is both chiral and acidic

• 
  A
• 
  B
• 
  C
• 
  D

The general formula of amino acids is

• 
  A
• 
  B
• 
  C
• 
  D

Acetic acids react with PCI5 giving:

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

What is formed when oxalic acid is dehydrated by conc. H₂SO₄?

• C + CO₂ A
• CO B
• CO₂ C
• CO + CO₂ D

The Zwitter ion is also called

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

Caroxyl group has functional in it.

• one A
• two B
• three C
• four D

Acetic anhydride is obtained form acetyl chloride by the reaction of

• P₂O₅ A
• H₂SO₄ B
• CH₃COONa C
• CH₃COCH₃ 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

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

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

Which of the following does give violet colour with neutral ferric chloride?

• Acetic acid A
• Salicaylic acid B
• Formine acid C
• Benzoic acid D

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

The human body can synthesize ______ amino acids

• 1 A
• 10 B
• 20 C
• 19 D

Easter are pleasant smelling compounds. Which ester posseses odour like pineapple

• Amylacetate A
• Amylbutyrate B
• Ethylbutyrate C
• Benzylacetate D

Acetic acid is miscible in:

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

Amiino acids are building blocks of:

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

Acetamide is prepared by

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

Which is not carboxylic acid with pungent smell?

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

If acetyl chloride is reducing in the presence of BaSO₄and Pd, then

• CH₃CHO is formed A
• CH₃CH₂OH is formed B
• CH₃COOH is formed C
• CH₃COCH₃is formed D

The solution of which acid is used for seasoning of food

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

• Ethanol in the presence of concentrated sulphuric acid A
• Potassium hydroxide B
• Sodium C
• Sodium carbonate 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

Amino acids are buildng blocks of:

• protein A
• Carbohydrates B
• Lipids C
• fats D

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

Acetamide and NaOBr/OH^-produce

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

Vinegar made form cane sugar, now a days synthetically contains

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

CH₃CH₂COOH is also named as:

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

Lower carboxylic acids are soluble in water due to

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

Glacial acetic acid freezes to ice like solid it.

• 07 A
• 17 B
• 27 C
• 37 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

General formula of aliphatic carboxylic acids:

• R---OH A
• R----COH B
• R----CO---R C
• RCOOH D