Question

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.  
Assertion A: Butan -1- ol has higher boiling point than ethoxyethane.  
Reason R: Extensive hydrogen bonding leads to stronger association of molecules.  
In the light of the above statements, choose the correct answer from the options given below: 

• A. Both A and R are true and R is the correct explanation of A
• B. A is true but R is false
• C. Both A and R are true but R is not the correct explanation of A
• D. A is false but R is true

Answer 1

The Correct Option is A

Butan-1-ol contains an -OH group, allowing it to form hydrogen bonds, which increase intermolecular forces and raise the boiling point.

Ethoxyethane (ether) cannot form hydrogen bonds due to the lack of an -OH group, resulting in weaker intermolecular forces and a lower boiling point.

Hydrogen bonding is the primary reason for the stronger association of molecules in butan-1-ol compared to ethoxyethane.

Thus, both A and R are true, and R is the correct explanation of A.