Free Carboxylic Acids MCQs with Answers
550 Carboxylic Acids MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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Read the Carboxylic Acids notesFree MDCAT chapter notes with key terms550 questions · page 28 of 28
- A. Reduction
- B. Oxidation
- C. Hydrolysis
- D. None of above
Explanation: The process of converting a carboxylic acid into alcohol in the presence of LiAlH4 is reduction.
Correct answer: Reduction- A. FCH COOH
- B. CH3COOH
- C. CICH COOH
- D. C6H5CH,COOH
Explanation: Electronegativity increases the acidity by increasing the ionic character of O-H.
Correct answer: FCH COOH- A. CH3COOH
- B. CH2ClCOOH
- C. CHCl2COOH
- D. CCl3COOH
Explanation: The acidity of a carboxylic acid is influenced by the presence of substituents that can stabilize the carboxylate ion.
Correct answer: CCl3COOH- A. CH3COOH
- B. C2H5NH2
- C. CH3COCH3
- D. CH3CH2OH
Explanation: The correct answer is CH3COOH. Carboxylic acids, such as acetic acid (CH3COOH), react with sodium bicarbonate (NaHCO3) to produce carbon…
Correct answer: CH3COOH- A. CH3COOH
- B. CH3CH2COOH
- C. C6H5CG2COOH
- D. FCH2COOH
Explanation: D is the correct option, as it contains a halogen which have strong electron-withdrawing effects.
Correct answer: FCH2COOH- A. CH3COOH >> CHCl2COOH > CH2ClCOOH
- B. CHCl2COOH > CH2ClCOOH > CH3COOH
- C. CH3COOH > CHCl2COOH > CH2ClCOOH
- D. CHCl2COOH >> CH2COOH > CH2ClCOOH
Explanation: The acidity of carboxylic acids is influenced by the presence of electron-withdrawing groups.
Correct answer: CHCl2COOH > CH2ClCOOH > CH3COOH- A. Option A: Acetic acid reacts with sodium to form sodium acetate and hydrogen gas.
- B. Option B: Acetic acid reacts with ethanol in the presence of sulfuric acid to form ethyl acetate and water.
- C. Option C: Acetic acid reacts with phosphorus pentoxide to form acetic anhydride.
- D. Option D: Acetic acid reacts with ammonia to form acetyl chloride and water.
Explanation: The correct answer is Option D. Acetic acid does not react with ammonia to form acetyl chloride and water; instead, it usually forms…
Correct answer: Option D: Acetic acid reacts with ammonia to form acetyl chloride and water.- A. CH3COOH
- B. C2H5OH
- C. C2H2O-C2H5
- D. (CH3CH2)3N
Explanation: CH3COOH (acetic acid) has the highest boiling point among the options at 118°C, primarily due to its ability to form strong hydrogen…
Correct answer: CH3COOH- A. (CH4 - CH2)3 N
- B. C2H3OH
- C. C2H3 - O - C2H3
- D. CH3COOH
Explanation: Acetic acid (CH3COOH) has the highest boiling point among the compounds you mentioned.
Correct answer: CH3COOH- A. Ethanol
- B. Acetic acid
- C. Chloroacetic acid
- D. Fluoroacetic acid
Explanation: Fluoroacetic acid (FCH2COOH) is the strongest acid among the options provided.
Correct answer: Fluoroacetic acid