Free Reactivity of Carboxylic Acids MCQs with Answers

• A. CH3COOH > ClCH2COOH > Cl2CHCOOH > Cl3CCOOH
• B. CH3COOH > Cl2CHCOOH > Cl3CCOOH > ClCH2COOH
• C. Cl3CCOOH > Cl2CHCOOH > ClCH2COOH > CH3COOH
• D. Cl3CCOOH > CH3COOH > Cl2CHCOOH > ClCH2COOH

Explanation: Chlorine is an electronegative atom and it pulls the electron density towards itself thus spreading the charge and making the conjugate…

• A. CH2Cl-H2-COOH
• B. CHCl2COOH
• C. CH3 COOH
• D. CH3- CH2-COOH

Explanation: Many concepts are required to be cleared while solving these types of MCQsFirst, we should know, those acids are the strongest which can…

• A. they are polar molecules
• B. they form H-bonds
• C. they are stronger than mineral acids
• D. they have higher boiling points than their corresponding alcohols

Explanation: Mineral acids are stronger acids than carboxylic acids because mineral acids are completely ionized, whereas carboxylic acids are…

• A. Dichloroacetic acid
• B. Chloroacetic acid
• C. Formic acid
• D. Acetic acid

Explanation: Greater -I effect, due to the presence of two chloro groups increase the acid strength of dichloroacetic acid

• A. CH2Cl_CH2-COOH
• B. CHCl2_COOH
• C. CH3_COOH
• D. CH3-CH2-COOH

Explanation: In this case, the acidity of the carboxylic acids can be compared based on the stability of their corresponding conjugate bases.

• A. Azides
• B. Esters
• C. Ketones
• D. Ethers

Explanation: When carboxylic acids react with alcohols in the presence of catalytic amounts of mineral acids, they undergo an esterification reaction.

• 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.

• A. FCH COOH
• B. CH3COOH
• C. CICH COOH
• D. C6H5CH,COOH

Explanation: Electronegativity increases the acidity by increasing the ionic character of O-H.

• 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.

• 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…

• 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.

• 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.

• 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…

• 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…

• 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.

• A. Ethanol
• B. Acetic acid
• C. Chloroacetic acid
• D. Fluoroacetic acid

Explanation: Fluoroacetic acid (FCH2COOH) is the strongest acid among the options provided.