Question

3.9% KCL solution is having molarity decimolar find the density of solution...

Answer 1

Tb = i Kb molality
​i is the vant hoff factor that should be considered since KCl is a strong electrolyte that dissociates in solution two give two ions.

None of the above options match this so we should not consider i.
Then Tb = 0.521 = 0.52 K
Tbsolution = 373.52 K or 100.52 oC
The correct answer will be (A).