PU E 2026 Carboxylic Acids Free Quiz 1

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PU E 2026 Carboxylic Acids Free Quiz 1

PU E Quiz

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General 10 MCQs

1. How are carboxylic acids prepared?

A. Oxidation of aldehydes and primary alcohols B. Oxidation of secondary alcohols C. Oxidation of tertiary alcohols D. Oxidation of alkanes

2. What is the general formula of carboxylic acids?

A. R-OH B. R-COOH C. R-CHO D. R-CO-R

3. What is the simplest carboxylic acid?

A. Ethanoic acid B. Propanoic acid C. Methanoic acid (formic acid) D. Butanoic acid

4. What are the methods for carboxylic acid preparation?

A. Hydrolysis of nitriles and esters B. Only by oxidation C. Only by reduction D. Only by dehydration

5. What is the nature of carboxylic acids?

A. Weak acids B. Strong acids C. Neutral D. Basic

6. Why are carboxylic acids more acidic than alcohols?

A. Less acidic B. More acidic (due to resonance stabilization) C. Equally acidic D. Basic

7. What is the approximate pKa of carboxylic acids?

A. 1-2 B. 10-11 C. 4-5 D. 16-18

8. What is the pKa of acetic acid?

A. 1.5 B. 2.5 C. 3.5 D. 4.76

9. What is formed when carboxylic acids react with bases?

A. Salts (carboxylates) B. Alcohols C. Esters D. Amides

10. What catalyst is used in esterification?

A. Base catalyst B. Acid catalyst (H2SO4) C. No catalyst D. Metal catalyst

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