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MDCAT
Chemistry
2025

Chemistry · Carboxylic Acids and its Derivatives

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive drills and topic analytics.

Question

Formic acid reacts with ethanol in presence of acid catalyst producing:

Options
  • A

    Ester

  • B

    Ether

  • C

    Acid anhydride

  • D

    Phenol

Explanation

In this reaction, formic acid (HCOOH) reacts with ethanol (C2H5OH) in the presence of an acid catalyst such as sulfuric acid. This process is known as esterification, where a water molecule is eliminated, resulting in the formation of an ester. The specific ester formed from this reaction is ethyl formate (HCOOC2H5). The other options are incorrect because they do not represent the products formed through this specific reaction mechanism.

This is the correct answer. Formic acid (a carboxylic acid) reacts with ethanol (an alcohol) in the presence of an acid catalyst to produce an ester through a condensation reaction, specifically forming ethyl formate.

This option is incorrect. While ethers can be formed from alcohols, they do not result from the reaction of a carboxylic acid and an alcohol in the presence of an acid catalyst.

This option is incorrect. Acid anhydrides are formed from the dehydration of two carboxylic acids, not from the reaction of a carboxylic acid with an alcohol.

This option is incorrect. Phenol is a product of the hydroxylation of benzene, not a product of the reaction between a carboxylic acid and an alcohol.

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Tagged under Chemistry · Carboxylic Acids and its Derivatives · 2025