Question

The high melting point and insolubility of sulphanilic acid in organic solvents are due to:

• A. non-polar nature
• B. Zwitter ion structure
• C. Van der Waals' forces
• D. none of the above

Answer 1

Answer: (C)

Van der Waals' forces

The high melting point and insolubility of sulphanilic acid in organic solvents are due to its Zwitter ion. Due to the formation of Zwitter ion, the molecule becomes polar. Hence, there are strong intermolecular electrostatic attractive forces. Hence, it has a high melting point. Due to polar nature, it is insoluble in non-polar organic solvents.