ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

When propanamide reacts with Br₂and NaOH then which of the following compounds is formed?

• Ethyl alcohol A
• Propyl alcohol B
• Propyl amine C
• Ethylamine D

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

• 
  A
• 
  B
• 
  C
• 
  D

Acetic acids react with PCI5 giving:

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

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

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

Pro stand for

• Valine A
• Alamine B
• Glycine C
• Proline D

From the following values of dissociation constants of four acids which value represents the strongest acid?

• 2 x 10^-2 A
• 0.02 x 10^-1 B
• 3 x 10^-4 C
• 2 x 10^-4 D

Carboxyl group has functional group in it:

• One A
• Two B
• Three C
• Four D

Toluene can be oxidized to benzoic acid by

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

Glacial Acetic acid is

• Pure acetic acid at 100°C A
• Acetic acid mixed with methanol B
• Pure acetic acid at 0°C C
• Pure acetic acid above 16.6°C D

Aromatic carboxylic acids have carboxyl group attached to group :

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

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

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

Acetic acid is also named.

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

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

Which of the following derivative cannot be prepared directly from acetic acid?

• Acetamide A
• Acetyl chloride B
• Ethyl acetate C
• Acetic acid 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

Acetamide is

• Highly acidic A
• Highly basic B
• Neutral C
• amphoteric 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

In preparation medhod of carboxylic acids from alkyl halides always carboxylic acid formed which have carbon atoms:

• One less than in R----X A
• One more than in R---X B
• Equal to R---X C
• Double to R----X D

• Elimination Esterification A
• Elimination Isomerisation B
• Oxidation Exterification C
• Oxidation Oxidation 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

The Zwitter ion is also called

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

Carboxylic acids are reduced to in presence of NaAIH₄

• Esters A
• Acetyl chloride B
• alcohol C
• Aldehydes D

Acyl halide is formed by reacting PCl₅with

• Alcohol A
• Ester B
• Amide C
• Both carboxylic acids as well as esters D

Formic acid is obtained when

• Calcium acetate is heated with conc.H₂SO₄ A
• Calcium formate is heated with calcium acetate B
• Glycerol is heated with oxalic acid C
• Acetaldehyde is oxidized with K₂Cr₂O₇and H₂SO₄ D

Common names of carboxylic acids are given by then:

• Source A
• Person discovered B
• place C
• habit 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

Vinegar made form cane sugar, now a days synthetically contains

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

Acetic acid is miscible in:

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

The solution of which acid is use for seasoning of food?

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