ECAT Pre Engineering Chemistry Chapter 24 MCQ Test With Answer

Carboxylic acids are reduced to in presence of NaAIH₄

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

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

• Phenol A
• Aldehyde B
• Ketones C
• Carboxylic acids 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 order of decreasing ease of reaction with ammonia is

• Anhydrides, esters, ethers A
• Anhydrides, ethers, esters B
• Ethers, anhydrides, esters C
• Esters, ethers, anhydrides D

Acetic acid is also named.

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

General formula of aliphatic carboxylic acids:

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

Zwitter ion is ______ ion an amino acid

• Polar A
• Monopular B
• Dipolar C
• Non polar D

Ethyl acetate is obtained when methyl magnesium iodide reacts with

• Ethyl formate A
• Ethyl choroformate B
• Acetyl chloride C
• carbondioxide 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

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

Carboxylic acids functional group is:

• ----COOH A
• ----CO--- B
• ----OH C
• -----COH D

Acetamide is prepared by:

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

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

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

Rosenmund's reduction of an acyl chloride gives

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

Saponification of ethyl benzoate with caustic soda

• Benzyl alcohol,ethanoic acid A
• Sodium benzoate, ethanol B
• Benzoic acid, sodium ethoxide C
• Phenol, ethanoic acid D

• di(4-bormophenyl) method A
• Methanol B
• Propan-1-ol C
• Propan-2-ol D

The organic compounds containing Ph-OH group are called:

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

Glacial acetic acid freezes to ice like solid at (°C)

• 07 A
• 17 B
• 27 C
• 37 D

Hydrolytic reaction of fats by causic soda is known as

• Acetylation A
• Carboxylation B
• Esterification C
• Saponification D

The general formula of amino acids is

• 
  A
• 
  B
• 
  C
• 
  D

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

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

Palmitic acid & steanic acid ae obtained from process of fats & oils:

• Reduction A
• Neutralization B
• oxidation C
• hydrolysis D

Acetamides are formed by the reaction of carboxylic acids with

• Acids A
• Bases B
• Salts C
• NH₃ D

A carboxylic acid contains:

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

Carboxylic acid can generally be prepared by various methods. Which of the following methods is not suitable for making carboxylic acids

• By the oxidation of primary alcohols A
• By the hydrolysis of nitriles B
• By the carbonation of Grignard, reagent C
• By the hydrolysis of p-amines D

Amylacetate flavour is present in:

• Banana A
• Apple B
• Jasmine C
• Orange D

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

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

Vinegar made form cane sugar, now a days synthetically contains

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

Which of the following is the strongest acid?

• CF₃COOH A
• CBr₃COOH B
• CH₃COOH C
• CCl₃COOH D