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In the table above, the two compounds that will combine in the presence of an...

Chemistry
JAMB 2025

In the table above, the two compounds that will combine in the presence of an acid-catalyzed compound, V is

  • A. I and IV
  • B. III and IV
  • C. I and II
  • D. II and III
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Correct Answer: Option A
Explanation

Th formula RCOOR' represents alkanoates (esters). However, the two compounds that combine in the presence of an acid catalyst to form an alkanoate (ester) and water are an alkanoic acid (carboxylic acid) and an alkanol (alcohol).  This reaction is known as esterification. The general equation is: 

                       I                       IV      Acid catalyst    V

                    ROH     +      RCOOH      →           RCOOR'  +   H\(_2\)O

                  alkanol         alkanoic acid                esters           water

B. The reaction between a carboxylic acid (RCOOH) and an ether (ROR′) generally does not readily occur under normal conditions because ethers are relatively unreactive. Ethers are stable compounds and do not typically react directly with carboxylic acids to form a new product. 

C. The reaction between an alcohol (ROH) and a ketone (RCOR') can produce hemiacetals and, with excess alcohol and an acid catalyst, acetals.

       ROH  +  RCOR'      R\(_2\)C(OH)(OR')

D. The functional groups involved are an ether (R-O-R′) and a ketone (R-CO-R′). Ethers are known for being generally unreactive, often used as solvents because they do not easily undergo chemical reactions. In the absence of specific strong reagents (like strong acids, bases, or reducing/oxidizing agents) or extreme conditions, these two stable organic compounds will simply coexist as a mixture, with no new product formed

The correct answer is option A 

There is an explanation video available below.


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Explanation Video

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