Question

Which one of the following is INCORRECT about saturated fatty acids?

• A. They do not have double bond between carbon atoms.
• B. They are not fully saturated with hydrogen atoms.
• C. Palmitic acid and stearic acid are saturated fatty acids.
• D. They contain maximum possible hydrogen atoms.

Hint:

Presence or absence of C=C bonds helps distinguish saturated and unsaturated fatty acids.

Answer 1

The Correct Option is B

Step 1: Understanding saturated fatty acids.
Saturated fatty acids are fatty acids in which all carbon atoms are connected by single bonds. Because of this, they hold the maximum possible number of hydrogen atoms.
Step 2: Key characteristics.
These fatty acids do not contain any carbon–carbon double bonds. This complete saturation with hydrogen gives them a straight structure, making them solid at room temperature.
Step 3: Analysis of options.
(A) They do not have double bond between carbon atoms: Correct statement.
(B) They are not fully saturated with hydrogen atoms: Incorrect, because saturated fatty acids are fully saturated with hydrogen.
(C) Palmitic acid and stearic acid are saturated fatty acids: Correct example.
(D) They contain maximum possible hydrogen atoms: Correct property.
Step 4: Conclusion.
Option (B) is incorrect and hence is the correct answer to the question.