Which among the following has highest boiling point? 1)1 M glucose 2) ...
Highest Boiling Point
- 1 M glucose
- 1 M KCl
- 1 M Al(NO3)3
- 1 M Na2SO4
Explanation:
The boiling point of a solution is directly proportional to the concentration of solute particles in it. Therefore, the solution with the highest concentration of solute particles will have the highest boiling point.
1 M glucose:
Glucose is a non-electrolyte, meaning it does not dissociate into ions when dissolved in water. Therefore, 1 M glucose solution will have only one particle per molecule, and hence the lowest boiling point among the given options.
1 M KCl:
KCl is an electrolyte that dissociates into K+ and Cl- ions when dissolved in water. Therefore, 1 M KCl solution will have three particles per molecule, resulting in a higher boiling point than glucose.
1 M Al(NO3)3:
Al(NO3)3 is also an electrolyte that dissociates into Al3+ and NO3- ions when dissolved in water. Therefore, 1 M Al(NO3)3 solution will have four particles per molecule, resulting in a higher boiling point than KCl.
1 M Na2SO4:
Na2SO4 is an electrolyte that dissociates into 2Na+ and SO42- ions when dissolved in water. Therefore, 1 M Na2SO4 solution will have three particles per molecule (2Na+ and 1SO42-), resulting in the highest boiling point among the given options.
Conclusion:
Therefore, the solution with the highest boiling point among the given options is 1 M Na2SO4.