ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

Acetamide and NaOBr/OH^-produce

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

A carboxylic acid with one caboxyl group:

• Monocarboxylic acid A
• Dicarboxylic acid B
• Tricarboxylic acid C
• Polycarboxylic acid D

Between CH₃COOH and HCOOH, HCOOH will be

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

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

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

The general formula of amino acids is

• 
  A
• 
  B
• 
  C
• 
  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 also named.

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

Which acid is used in the manufacture of synthetic fibre

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

With amino acids ninhydrin solution gives

• Blue A
• Violet B
• Bluish violet C
• White D

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

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

The Zwitter ion is also called

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

Partial reduction of acetic acid happens with

• NH₃ A
• LiAIH₄ B
• P + HI C
• PCI₅ D

Which reagent is used to reduce a carboxylic group to an alcohol?

• H2/Ni A
• H2/Pt B
• NaBH4 C
• LiAIH4 D

Formic acid is given names from Latin word a "formic" which means:

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

Acetic acid is manufactured by the fermentation of

• Ethanol A
• Methanol B
• Ethanal C
• Methanal D

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

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

Which compound is both chiral and acidic

• 
  A
• 
  B
• 
  C
• 
  D

Heating a mixture of sodium benzoate and soda lime gives

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

Which acid is used in the manufacture of synthetic fibre?

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

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

Which of the following order is incorrect w.r.t property indicated?

• Formic acid > Acetic acid > Propionic acid (ACID STRENGTH) A
• Cyclohexanol < Phenol < Benzoic acid ( ACID STRENGTH) B
• Benzamide < Aniline < Cyclohexylamine ( ACID STRENGTH) C
• FCH₂COOH > CICH₂COOH > BrCH₂COOH (ACID STRENGTH) D

Lactic acid on oxidation by alkaline potassium permanganate gives

• Tartaric acid A
• Pyruvic acid B
• Cinnamic acid C
• Propionic acid D

The M.P. of carboxylic acids containing even number of carbon atoms is ______ than the next

• Higher A
• Low B
• Equal C
• None D

Vinegar made form cane sugar, now a days synthetically contains

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

Optical activity is possible in

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

Amino acids contain functional groups in it:

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

The solution of which acid is used for seasoning of food

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

Toluene can be oxidized to benzoic acid by

• KMnO₄(alk) A
• K₂Cr₂O₇(acidic) B
• Both C
• None D