If for a sucrose solution, elevation in boiling point is 0.1^° C , then what will be the boiling point of NaCl solution for same molal concentration?

Q57 / 160 · JIPMER 2006 · Chemistry

If for a sucrose solution, elevation in boiling point is $0.1^{\circ} \mathrm{C}$, then what will be the boiling point of NaCl solution for same molal concentration?

A
$0.1^{\circ} \mathrm{C}$
Correct answer
B
$0.2^{\circ} \mathrm{C}$
C
$0.08^{\circ} \mathrm{C}$
D
$0.01^{\circ} \mathrm{C}$

Solution

Elevation in boiling point is a colligative property as it depends upon the number of particles. $\Delta T_b \propto n$ For sucrose, $n=1, \Delta T_b=0.1^{\circ} \mathrm{C}$ For $\mathrm{NaCl}, n=2, \Delta T_b=0.2^{\circ} \mathrm{C}$

Hence, the correct answer is option: 'B'.

Relevant Questions

Which one of the following electrolytes has the same value of van't Hoff factor (i) as that of ?2018Colligative Properties and Abnormal Molecular Masses
The van't Hoff factor for solution is 2.74 . The degree of dissociation is2018Colligative Properties and Abnormal Molecular Masses
If osmotic pressure of solution of sucrose is same as solution of ' X ', then the molecular mass of is2018Colligative Properties and Abnormal Molecular Masses
Consider the following solutions, glucose, M , M , Which of the following pairs is isotonic?2017Colligative Properties and Abnormal Molecular Masses
Which of the following aqueous solution should have highest boiling point?2017Colligative Properties and Abnormal Molecular Masses
For preparing 3.00 L of 1 M NaOH by mixing portions of two stock solutions ( and ) of 2.50 M NaOH and 0.40 M NaOH respectively. Find out the2015Colligative Properties and Abnormal Molecular Masses