Carboxylic Acids vs Esters: Structural Differences

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Questions and Answers

Which functional group is present in both carboxylic acids and esters?

  • Aldehyde group
  • Carbonyl group (correct)
  • Alcohol group
  • Amine group

How do carboxylic acids and esters differ in terms of the second oxygen atom?

  • The second oxygen atom bonds to a hydrogen in carboxylic acids but to a carbon in esters (correct)
  • The second oxygen atom bonds to a carbon in both carboxylic acids and esters
  • The second oxygen atom bonds to a nitrogen in carboxylic acids but to a carbon in esters
  • The second oxygen atom bonds to a hydrogen in both carboxylic acids and esters

How do carboxylic acids react with bases?

  • They form aldehydes
  • They form ketones
  • They form esters
  • They form ionic salts (correct)

How are carboxylic acids described in terms of ionization in water?

<p>About 1% ionized in water (D)</p> Signup and view all the answers

How are esters generally produced?

<p>By the reaction of acids with alcohols (D)</p> Signup and view all the answers

Which of the following is an example of an ester formed from the reaction of acetic acid with ethanol?

<p>Ethyl acetate (C)</p> Signup and view all the answers

Which functional group is present in aldehydes?

<p>–CHO (A)</p> Signup and view all the answers

What distinguishes ketones from aldehydes?

<p>Ketones contain at least one hydrogen atom attached to the carbonyl carbon atom. (C)</p> Signup and view all the answers

Which group is found in carboxylic acids?

<p>–CO2H (C)</p> Signup and view all the answers

Esters contain an oxygen atom attached to which part of the carbonyl carbon atom?

<p>Alkyl group (C)</p> Signup and view all the answers

What distinguishes carboxylic acids from ketones?

<p>Carboxylic acids contain a hydroxyl group attached to the carbonyl carbon atom. (A)</p> Signup and view all the answers

What functional group do aldehydes, ketones, carboxylic acids, and esters contain?

<p>Carbonyl group (C)</p> Signup and view all the answers

Which of the following has the suffix -al in its name?

<p>Aldehyde (D)</p> Signup and view all the answers

How is an aldehyde represented in chemical formulas?

<p>-CHO (B)</p> Signup and view all the answers

What is the geometry around the carbon atom in the carbonyl group in aldehydes and ketones?

<p>Trigonal planar (C)</p> Signup and view all the answers

Which functional group is present in carboxylic acids but absent in ketones?

<p>Hydroxyl group (B)</p> Signup and view all the answers

In which organic compound is the carbonyl group bonded to two carbon atoms?

<p>Ketone (B)</p> Signup and view all the answers

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