Carboxylic Acids & Derivatives

Q. What is the effect of increasing the number of carbon atoms in a carboxylic acid on its acidity?
  • A. Increases acidity
  • B. Decreases acidity
  • C. No effect
  • D. Depends on the structure
Q. What is the effect of increasing the number of carbon atoms in a carboxylic acid on its solubility in water?
  • A. Increases solubility
  • B. Decreases solubility
  • C. No effect
  • D. First increases then decreases
Q. What is the functional group present in carboxylic acids?
  • A. Hydroxyl group
  • B. Carbonyl group
  • C. Carboxyl group
  • D. Amino group
Q. What is the general formula for carboxylic acids?
  • A. C_nH_2nO_2
  • B. C_nH_2n+1COOH
  • C. C_nH_2nO
  • D. C_nH_2n+2O
Q. What is the IUPAC name of CH3COOH?
  • A. Methanoic acid
  • B. Ethanoic acid
  • C. Propanoic acid
  • D. Butanoic acid
Q. What is the main product when a carboxylic acid is reduced?
  • A. Alcohol
  • B. Aldehyde
  • C. Ketone
  • D. Alkane
Q. What is the main product when benzoic acid is treated with thionyl chloride?
  • A. Benzoyl chloride
  • B. Benzyl alcohol
  • C. Benzene
  • D. Benzoate salt
Q. What is the main product when butanoic acid is treated with thionyl chloride?
  • A. Butyl chloride
  • B. Butanoate
  • C. Butanoyl chloride
  • D. Butanol
Q. What is the main product when propanoic acid is treated with thionyl chloride?
  • A. Propyl chloride
  • B. Propanoic anhydride
  • C. Propionyl chloride
  • D. Propylene
Q. What is the pKa value of acetic acid?
  • A. 4.76
  • B. 7.00
  • C. 9.25
  • D. 2.00
Q. What is the primary product of the reaction between a carboxylic acid and an alcohol in the presence of an acid catalyst?
  • A. Aldehyde
  • B. Ester
  • C. Ketone
  • D. Amide
Q. What is the primary product when a carboxylic acid is reduced with lithium aluminum hydride (LiAlH4)?
  • A. Alcohol
  • B. Aldehyde
  • C. Ketone
  • D. Ester
Q. What is the primary product when a carboxylic acid reacts with thionyl chloride (SOCl2)?
  • A. Acid chloride
  • B. Ester
  • C. Alcohol
  • D. Aldehyde
Q. What is the product of the decarboxylation of sodium acetate?
  • A. Methane
  • B. Ethane
  • C. Carbon dioxide
  • D. Acetic acid
Q. What is the product of the esterification reaction between acetic acid and ethanol?
  • A. Ethyl acetate
  • B. Acetic anhydride
  • C. Ethanol acetate
  • D. Acetic acid
Q. What is the product of the reaction between a carboxylic acid and an alcohol?
  • A. Amide
  • B. Ester
  • C. Aldehyde
  • D. Ketone
Q. What is the product of the reaction between acetic acid and sodium bicarbonate?
  • A. Sodium acetate
  • B. Carbon dioxide
  • C. Water
  • D. All of the above
Q. Which of the following acids is stronger than acetic acid?
  • A. Formic acid
  • B. Propanoic acid
  • C. Butanoic acid
  • D. Valeric acid
Q. Which of the following acids is the strongest?
  • A. Formic acid
  • B. Acetic acid
  • C. Propanoic acid
  • D. Butanoic acid
Q. Which of the following carboxylic acids is a dicarboxylic acid?
  • A. Acetic acid
  • B. Oxalic acid
  • C. Formic acid
  • D. Butanoic acid
Q. Which of the following carboxylic acids is a solid at room temperature?
  • A. Acetic acid
  • B. Formic acid
  • C. Stearic acid
  • D. Propanoic acid
Q. Which of the following compounds can be formed by the decarboxylation of a carboxylic acid?
  • A. Alkane
  • B. Alkene
  • C. Alkyne
  • D. Aldehyde
Q. Which of the following compounds can be formed by the decarboxylation of sodium acetate?
  • A. Methane
  • B. Ethane
  • C. Propane
  • D. Butane
Q. Which of the following compounds can be formed by the esterification of a carboxylic acid?
  • A. Alcohol
  • B. Ester
  • C. Amide
  • D. Aldehyde
Q. Which of the following compounds can be formed by the esterification of acetic acid?
  • A. Ethyl acetate
  • B. Methyl acetate
  • C. Butyl acetate
  • D. All of the above
Q. Which of the following compounds is a derivative of carboxylic acid?
  • A. Alcohol
  • B. Ester
  • C. Aldehyde
  • D. Ketone
Q. Which of the following is a characteristic property of carboxylic acids?
  • A. High boiling points
  • B. Low solubility in water
  • C. Sweet smell
  • D. Basic nature
Q. Which of the following is a characteristic reaction of carboxylic acids?
  • A. Formation of esters
  • B. Formation of amides
  • C. Decarboxylation
  • D. All of the above
Q. Which of the following is a derivative of carboxylic acid?
  • A. Alcohol
  • B. Aldehyde
  • C. Ester
  • D. Alkane
Q. Which of the following is a dicarboxylic acid?
  • A. Acetic acid
  • B. Oxalic acid
  • C. Formic acid
  • D. Butanoic acid
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