Carboxylic Acids
Q. What is the boiling point trend of carboxylic acids compared to alcohols?
A.
Higher
B.
Lower
C.
Same
D.
Depends on molecular weight
Show solution
Solution
Carboxylic acids have higher boiling points than alcohols due to stronger hydrogen bonding.
Correct Answer: A — Higher
Learn More →
Q. What is the main product of the oxidation of ethanol?
A.
Acetic acid
B.
Formic acid
C.
Butanoic acid
D.
Propanoic acid
Show solution
Solution
The main product of the oxidation of ethanol is acetic acid.
Correct Answer: A — Acetic acid
Learn More →
Q. What is the main use of citric acid?
A.
Preservative
B.
Flavoring agent
C.
Cleaning agent
D.
All of the above
Show solution
Solution
Citric acid is used as a preservative, flavoring agent, and cleaning agent.
Correct Answer: D — All of the above
Learn More →
Q. What is the molecular formula of Benzoic acid?
A.
C6H5COOH
B.
C7H6O2
C.
C6H6O
D.
C6H4O2
Show solution
Solution
The molecular formula of Benzoic acid is C7H6O2.
Correct Answer: B — C7H6O2
Learn More →
Q. What is the molecular formula of butanoic acid?
A.
C3H6O2
B.
C4H8O2
C.
C5H10O2
D.
C6H12O2
Show solution
Solution
The molecular formula of butanoic acid is C4H8O2.
Correct Answer: B — C4H8O2
Learn More →
Q. What is the pKa of acetic acid?
A.
4.76
B.
5.76
C.
3.76
D.
6.76
Show solution
Solution
The pKa of acetic acid is approximately 4.76.
Correct Answer: A — 4.76
Learn More →
Q. What is the pKa range of most carboxylic acids?
A.
0-1
B.
4-5
C.
8-9
D.
10-11
Show solution
Solution
Most carboxylic acids have a pKa range of about 4-5.
Correct Answer: B — 4-5
Learn More →
Q. Which carboxylic acid has the highest boiling point?
A.
Formic acid
B.
Acetic acid
C.
Propanoic acid
D.
Butanoic acid
Show solution
Solution
Butanoic acid has the highest boiling point due to its longer carbon chain.
Correct Answer: D — Butanoic acid
Learn More →
Q. Which carboxylic acid is commonly known as 'butyric acid'?
A.
C3H6O2
B.
C4H8O2
C.
C5H10O2
D.
C2H4O2
Show solution
Solution
Butyric acid has the molecular formula C4H8O2.
Correct Answer: B — C4H8O2
Learn More →
Q. Which carboxylic acid is commonly known as formic acid?
A.
Methanoic acid
B.
Ethanoic acid
C.
Propanoic acid
D.
Butanoic acid
Show solution
Solution
Formic acid is the common name for Methanoic acid.
Correct Answer: A — Methanoic acid
Learn More →
Q. Which carboxylic acid is commonly known as vinegar?
A.
Formic acid
B.
Acetic acid
C.
Citric acid
D.
Lactic acid
Show solution
Solution
Acetic acid is commonly known as vinegar.
Correct Answer: B — Acetic acid
Learn More →
Q. Which carboxylic acid is found in vinegar?
A.
Citric acid
B.
Acetic acid
C.
Lactic acid
D.
Formic acid
Show solution
Solution
Acetic acid is the main component found in vinegar.
Correct Answer: B — Acetic acid
Learn More →
Q. Which of the following acids is a dicarboxylic acid?
A.
Oxalic acid
B.
Acetic acid
C.
Formic acid
D.
Propanoic acid
Show solution
Solution
Oxalic acid is a dicarboxylic acid with two carboxyl groups.
Correct Answer: A — Oxalic acid
Learn More →
Q. Which of the following acids is a saturated carboxylic acid?
A.
Butanoic acid
B.
Hexenoic acid
C.
Cyclopropanoic acid
D.
Benzoic acid
Show solution
Solution
Butanoic acid is a saturated carboxylic acid.
Correct Answer: A — Butanoic acid
Learn More →
Q. Which of the following acids is used in the production of esters?
A.
Acetic acid
B.
Sulfuric acid
C.
Nitric acid
D.
Hydrochloric acid
Show solution
Solution
Acetic acid is commonly used in the production of esters.
Correct Answer: A — Acetic acid
Learn More →
Q. Which of the following is a carboxylic acid?
A.
C2H5OH
B.
C3H6O
C.
C2H4O2
D.
C3H8
Show solution
Solution
C2H4O2 (Acetic acid) is a carboxylic acid.
Correct Answer: C — C2H4O2
Learn More →
Q. Which of the following is a saturated carboxylic acid?
A.
Hexanoic acid
B.
Hexenoic acid
C.
Cyclohexanoic acid
D.
Benzoic acid
Show solution
Solution
Hexanoic acid is a saturated carboxylic acid.
Correct Answer: A — Hexanoic acid
Learn More →
Q. Which of the following is a strong carboxylic acid?
A.
Formic acid
B.
Acetic acid
C.
Propanoic acid
D.
Butyric acid
Show solution
Solution
Formic acid is considered a stronger carboxylic acid compared to the others listed.
Correct Answer: A — Formic acid
Learn More →
Q. Which of the following is the strongest carboxylic acid? (2022)
A.
Formic acid
B.
Acetic acid
C.
Propanoic acid
D.
Butanoic acid
Show solution
Solution
Formic acid (HCOOH) is the strongest carboxylic acid among the given options due to the presence of a hydrogen atom directly attached to the carbonyl carbon, which increases its acidity.
Correct Answer: A — Formic acid
Learn More →
Q. Which of the following statements about carboxylic acids is incorrect? (2020)
A.
They can form hydrogen bonds.
B.
They have higher boiling points than alcohols.
C.
They are less acidic than alcohols.
D.
They can be converted to esters.
Show solution
Solution
Carboxylic acids are more acidic than alcohols due to the resonance stabilization of their conjugate base, making the statement 'They are less acidic than alcohols' incorrect.
Correct Answer: C — They are less acidic than alcohols.
Learn More →
Showing 1 to 20 of 20 (1 Pages)