Q. Consider the following aqueous solutions and assume 100% ionisation in electrolytes 0.1 m urea 0.04 m $Al_{2}\left( SO_{4} \right)_{3}$ 0.05 m $CaCl_{2}$ 0.005 m NaCl The correct statement regarding the above solution is
A) Freezing point will be lowest for solution I
B) Freezing point will be highest for solution IV
C) Boiling point will be highest for solution IV
D) Vapour pressure will be highest for solution II
Explanation
(b)
According to colligative property, freezing point will be highest for IV solution due to lower concentration of NaCl.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.