What type of linkage is formed when an alcohol and an acid react?
Correct answer: D. Ester bond
- A. Ionic bond
- B. Peptide bond
- C. Glycosidic linkage
- D. Ester bond
Explanation
Option D is correct. When an alcohol and an acid react, they form an ester linkage. An ester linkage is a type of covalent bond that is formed between an alcohol group and a carboxylic acid group. The general formula for an ester is RCOOR', where R and R' are alkyl groups. The reaction between an alcohol and an acid is called an esterification reaction. The esterification reaction is a condensation reaction, which means that it produces a water molecule as a byproduct. The esterification reaction is catalyzed by an acid, such as sulfuric acid. The esterification reaction is reversible, which means that the ester can be broken down back into the alcohol and the acid. However, the esterification reaction is usually carried out under conditions that favor the formation of the ester.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Biological Molecules questions
Lipids are organic molecules which are insoluble in:
Lipids contain double amount of energy as compared to the same amount of carbohydrates due to the presence of:
Muneeb is a chemistry student who is carrying out an experiment between an alcohol and acetic acid in the laboratory. The product formed at the end of the experiment will be:
The head of phospholipid molecule is polar (hydrophilic) due to:
Which of the following are the most prominent part of cell membranes in living organisms?
An organic compound that belongs to lipids: