Question

Which of the following solutions will exhibit highest boiling point?

• A. $0.01\, M\, Na _{2} SO _{4}( aq )$
• B. $0.01\, M\, KNO _{3}( aq )$
• C. $0.015\, M$ urea $( aq )$
• D. $0.015\, M$ glucose $( aq )$

Answer 1

Answer: (A)

Molecules having maximum number of ions will have maximum value of boiling point. In the given options, $0.01\, M\, Na _{2} SO _{4}$ contains maximum number of ions. So, $0.01\, M\,Na _{2} SO _{4}$ has highest boiling point.