2nd Year Chemistry Carboxylic Acids MCQs

Students can check the 2nd Year Chemistry Carboxylic Acids MCQs here. The important MCQs of 2nd Year Carboxylic Acids is given here. Carboxylic acids contain a carboxylic group. There is a nomenclature for carboxylic acids. There are different methods to prepare Carbolic acids. They have distinct physical characteristics. There are three types of reactions for Carboxylic acids including Reactions involving H atom, Reactions involving the OH group, and the reactions involving Carboxyl Group. The most important Carboxylic acid is Acetic Acid. Acetic Acids have their own characteristics and Uses. Amino Acid is an important organic compound that includes amino and carboxyl groups. They have a unique structure. There are different ways to synthesis Amino Acids. Amino Acids show different reactions. Peptides and Proteins are derived from Amino Acids. Now, you can get the important MCQs on this page below.

2nd Year Chemistry Carboxylic Acids MCQs

KEY POINTS

  • Nomenclature of Carboxylic Acids
  • Methods of preparation
  • Physical Characteristics
  • Reactions of Carboxylic Acids
  • Acetic Acid
  • Manufacture of Acetic Acid/Uses
  • Amino Acids
  • Synthesis of Amino Acids/Reactions
  • Peptides and Protiens

 

Question#1: Acetic acid can be prepared by ethanol under:

  • Oxidizing condition
  • Redox condition
  • Reducing condition
  • 7.0 pH condition

Answer

Answer

Oxidizing condition

Question#2: Ethanoic acid manufacturing through ethanol involves the use of:

  • Acidified potassium dichromate
  • Both A and C
  • Ammonical silver nitrate
  • Fehling s solution

Answer

Answer

Acidified potassium dichromate

Question#3: If ethanoic acid is to be prepared by hydrolysis of alkyl nitriles, which of the following can be the reagent to be hydrolyzed:

  • CH3CN
  • HCN
  • CH3CH2CN
  • None of these

Answer

Answer

CH3CN

Question#4: Hydrolysis of alkyl nitriles for preparing carboxylic acid requires:

  • Acidic conditions
  • Any of the above
  • Alkaline conditions
  • Both are simultaneously necessary

Answer

Answer

Acidic conditions

Question#5: Hydrolysis of CH3CH2CN will synthesize:

  • Ethanoic acid
  • Methanoic acid
  • Propanoic acid
  • Glutamic acid

Answer

Answer

Propanoic acid

Question#6: The production of acid amide involves the reaction of ethanoic acid with:

  • Amine
  • Amino acid
  • Ammonia
  • All of these

Answer

Answer

Ammonia

Question#7: Which of the following can be the reagent to produce acetyl chloride from ethanoic acid?

  • Thionyl chloride
  • NaCI
  • PCI5
  • Both A and C

Answer

Answer

Both A and C

Question#8: During the formation of an acetyl chloride from ethanoic acid what actually happens:

  • Displacement of the H+ from the acid by CI
  • Displacement of the OH-1from the acid by CI
  • Attachment of CI with the carbonyl carbon
  • None of these

Answer

Answer

Attachment of CI with the carbonyl carbon

Question#9: During the formation of an ester from acetic what actually happens:

  • Displacement of the H+ from the acid by CI
  • Displacement of the OH-1 from the acid by OCH3
  • Attachment of OCH3 with the carbonyl oxygen
  • Displacement of the H+ from the acid by OCH3

Answer

Answer

Displacement of the OH-1 from the acid by OCH3

Question#10: During the formation of an acid amide from ethanoic acid, what actually happens?

  • Displacement of the H+ from the acid by CI
  • Displacement of the OH-1 from the acid by NH2
  • Attachment of NH2 with the carbonyl oxygen
  • Displacement of the H+ from the acid by NH2

Answer

Answer

Displacement of the OH-1 from the acid by NH2

Question#11: Hydrolysis of amides gives the corresponding:

  • Carboxylic acid
  • Alkane
  • Alcohol
  • Amino acid

Answer

Answer

Carboxylic acid

Question#12: If NaOH is added to an unknown organic compound and the reaction evolves ammonia, then this unknown organic compound is most likely to be:

  • An ester
  • A carboxylic acid
  • An acid amide
  • An alkene

Answer

Answer

An acid amide

Question#13: Organic acids (carboxylic acids) are considered as:

  • Strong acids
  • Mild acids
  • Weak acids
  • Mineral acids

Answer

Answer

Weak acids

Question#14: Pure organic acids are much:

  • Weak than chloro substituted acids
  • Same strength as chloro substituted acids
  • Stronger than chloro substituted acids
  • None of these

Answer

Answer

Weak than chloro substituted acids

Question#15: The strength of the organic acids and chloro substituted acids is measured by pKa scale such that the smaller value of pKa corresponds to:

  • Stronger acid
  • Mild acid
  • Weaker acid
  • Very weak acid

Answer

Answer

Stronger acid

Question#16: Alkane nitriles can be prepared by treating alkyl halide with:

  • Alcohol
  • Potassium cyanide
  • Alcoholic potassium cyanide
  • Water

Answer

Answer

Alcoholic potassium cyanide

Question#17: Ethanoic acid can be prepared by hydrolysis of:

  • MethyI chloride
  • Methane nitrile
  • Ethane nitrile
  • EthyI chloride

Answer

Answer

Methane nitrile

Question#18: Carboxylic acids react with active metals to form their salt and?

  • H2O
  • H2O and CO2
  • CO2only
  • H2 gas

Answer

Answer

H2 gas

Question#19: Which pair can be used as a reactant for the preparation of acetyl chloride?

  • CH3COOH, HCI
  • CH3COOH, SOCI2
  • CH3COOH, PCI5
  • Both B and C

Answer

Answer

Both B and C

Question#20: For producing a carboxylic acid derivative. The addition of a nucleophile to carboxyl group is always following by displacement of:

  • -COOH group
  • H atom
  • -OH group
  • OR

Answer

Answer

-OH group

Q.21: Which statement is incorrect about the formation of an ester?

  • When carboxylic acids are heated with alcohol esters are formed
  • Esters have a fruity smell
  • Esters are used as artificial flavors
  • Ester is formed in the presence of NaOH

Answer

Answer

Ester is formed in the presence of NaOH

Question#22: Carboxylic acid reacts with ammonia to form which salt?

  • Acid amide
  • Ammonium acetate
  • Acetic anhydride
  • AcetyI chloride

Answer

Answer

Ammonium acetate

Question#23: Which ester is used as an orange flavor?

  • Amyl acetate
  • Benzyl acetate
  • octyl acetate
  • IsobutyI formate

Answer

Answer

octyl acetate

Question#24: Which one is formed by the hydrolysis of acid amide?

  • Ammonium acetate
  • Acetic anhydride
  • Acetyl chloride
  • Carboxylic acid

Answer

Answer

Carboxylic acid

Question#25: Esters are______.

  • Acidic
  • Basic
  • Neutral
  • None of these

Answer

Answer

Neutral

Question#26: Here the strongest acid is________.

  • CH3COOH
  • CH3CH2COOH
  • CI-CH2-COOH
  • Br-CH2-COOH

Answer

Answer

CI-CH2-COOH

Question#27: Which of the following formula is more reactive for hydrolysis?

  • -COOR
  • -COOH
  • -CONH2
  • -COCI

Answer

Answer

-COCI

Question#28: The work of concentrated H2SO4in esterification process is as:

  • Dehydrating agent and catalyst
  • Dehydrating agent
  • Hydrolyzing agent
  • Catalyst

Answer

Answer

Catalyst

Question#29: The solubility of carboxylic acid in water gradually decreases with:

  • Decreases in molecular mass
  • Increases in molecular mass
  • Increases the amount of acid
  • Decreases the amount of water

Answer

Answer

Increases in molecular mass

Question#30: AcetyI chloride is soluble in which solvent?

  • H2O
  • Acetone
  • Ether
  • Both B and C

Answer

Answer

Both B and C

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