Which substance is most likely to be insoluble in water?
- Acheck_circle
Hexane (nonpolar)
- B
Ammonia
- C
Salt (NaCl)
- D
Sugar (lots of -OH groups)
Explanation
Hexane is nonpolar; water is polar. No favorable interactions form. Sugar, salt, ammonia all interact strongly with water (H bonds or ion-dipole).